On advice given in another bug, I ran `journalctl | fgrep DEN`. This produced as much as a gigabyte of output which certainly sounds excessive for one week that it represents. I replaced numbers with placeholders so I could `uniq -c` it (<hexN> stands for N hex characters), the top offenders are below. Is something misconfigured?
1152937 audit[<dec>]: AVC apparmor="DENIED" operation="truncate" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/Favicons-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
455154 audit[<dec>]: AVC apparmor="DENIED" operation="truncate" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/History-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
196028 audit[<dec>]: AVC apparmor="DENIED" operation="rename_src" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_docs.google.com_0.indexeddb.leveldb/LOG" pid=<dec> comm="ThreadPoolForeg" requested_mask="wd" denied_mask="wd" fsuid=1000 ouid=1000
195406 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_docs.google.com_0.indexeddb.leveldb/LOCK" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
195406 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_docs.google.com_0.indexeddb.leveldb/LOCK" pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
164056 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="truncate" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/Favicons-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
130756 audit[<dec>]: AVC apparmor="DENIED" operation="unlink" profile="snap.chromium.chromium" name=<hex168> pid=<dec> comm="ThreadPoolForeg" requested_mask="d" denied_mask="d" fsuid=1000 ouid=1000
111779 audit[<dec>]: AVC apparmor="DENIED" operation="rename_src" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/IndexedDB/https_docs.google.com_0.indexeddb.leveldb/LOG" pid=<dec> comm="ThreadPoolForeg" requested_mask="wd" denied_mask="wd" fsuid=1000 ouid=1000
111480 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/IndexedDB/https_docs.google.com_0.indexeddb.leveldb/LOCK" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
111480 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/IndexedDB/https_docs.google.com_0.indexeddb.leveldb/LOCK" pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
96203 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="truncate" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/History-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
62594 audit[<dec>]: AVC apparmor="DENIED" operation="rename_src" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_www.youtube.com_0.indexeddb.leveldb/LOG" pid=<dec> comm="ThreadPoolForeg" requested_mask="wd" denied_mask="wd" fsuid=1000 ouid=1000
62340 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_www.youtube.com_0.indexeddb.leveldb/LOCK" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
62340 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_www.youtube.com_0.indexeddb.leveldb/LOCK" pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
49838 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name=<hex140> pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
44399 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/Cookies-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
42368 audit[<dec>]: AVC apparmor="DENIED" operation="unlink" profile="snap.chromium.chromium" name=<hex172> pid=<dec> comm="ThreadPoolForeg" requested_mask="d" denied_mask="d" fsuid=1000 ouid=1000
41786 audit[<dec>]: AVC apparmor="DENIED" operation="unlink" profile="snap.chromium.chromium" name=<hex164> pid=<dec> comm="ThreadPoolForeg" requested_mask="d" denied_mask="d" fsuid=1000 ouid=1000
41592 audit[<dec>]: AVC apparmor="DENIED" operation="unlink" profile="snap.chromium.chromium" name=<hex158> pid=<dec> comm="ThreadPoolForeg" requested_mask="d" denied_mask="d" fsuid=1000 ouid=1000
41488 audit[<dec>]: AVC apparmor="DENIED" operation="rmdir" profile="snap.chromium.chromium" name=<hex146> pid=<dec> comm="ThreadPoolForeg" requested_mask="d" denied_mask="d" fsuid=1000 ouid=1000
41398 audit[<dec>]: AVC apparmor="DENIED" operation="unlink" profile="snap.chromium.chromium" name=<hex188> pid=<dec> comm="ThreadPoolForeg" requested_mask="d" denied_mask="d" fsuid=1000 ouid=1000
41398 audit[<dec>]: AVC apparmor="DENIED" operation="unlink" profile="snap.chromium.chromium" name=<hex178> pid=<dec> comm="ThreadPoolForeg" requested_mask="d" denied_mask="d" fsuid=1000 ouid=1000
41398 audit[<dec>]: AVC apparmor="DENIED" operation="unlink" profile="snap.chromium.chromium" name=<hex166> pid=<dec> comm="ThreadPoolForeg" requested_mask="d" denied_mask="d" fsuid=1000 ouid=1000
41398 audit[<dec>]: AVC apparmor="DENIED" operation="rmdir" profile="snap.chromium.chromium" name=<hex158> pid=<dec> comm="ThreadPoolForeg" requested_mask="d" denied_mask="d" fsuid=1000 ouid=1000
41290 audit[<dec>]: AVC apparmor="DENIED" operation="rmdir" profile="snap.chromium.chromium" name=<hex142> pid=<dec> comm="ThreadPoolForeg" requested_mask="d" denied_mask="d" fsuid=1000 ouid=1000
40584 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/Cookies-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
38584 audit[<dec>]: AVC apparmor="DENIED" operation="rename_src" profile="snap.chromium.chromium" name=<hex156> pid=<dec> comm="ThreadPoolForeg" requested_mask="wd" denied_mask="wd" fsuid=1000 ouid=1000
23639 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/Cookies-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
21997 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name=<hex178> pid=<dec> comm="Chrome_SyncThre" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
20733 audit[<dec>]: AVC apparmor="DENIED" operation="rename_src" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/IndexedDB/https_www.youtube.com_0.indexeddb.leveldb/LOG" pid=<dec> comm="ThreadPoolForeg" requested_mask="wd" denied_mask="wd" fsuid=1000 ouid=1000
20612 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/IndexedDB/https_www.youtube.com_0.indexeddb.leveldb/LOCK" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
20612 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/IndexedDB/https_www.youtube.com_0.indexeddb.leveldb/LOCK" pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
19260 audit[<dec>]: AVC apparmor="DENIED" operation="mkdir" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_publisher.liveperson.net_0.indexeddb.leveldb/" pid=<dec> comm="ThreadPoolForeg" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
19212 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name=<hex158> pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
19212 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name=<hex158> pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
19129 audit[<dec>]: AVC apparmor="DENIED" operation="mkdir" profile="snap.chromium.chromium" name=<hex160> pid=<dec> comm="ThreadPoolForeg" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
14013 audit[<dec>]: AVC apparmor="DENIED" operation="mknod" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/.org.chromium.Chromium.<alnum>" pid=<dec> comm="ThreadPoolForeg" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
12336 audit[<dec>]: AVC apparmor="DENIED" operation="truncate" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/History-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
9740 audit[<dec>]: AVC apparmor="DENIED" operation="rename_src" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_lpcdn.lpsnmedia.net_0.indexeddb.leveldb/LOG" pid=<dec> comm="ThreadPoolForeg" requested_mask="wd" denied_mask="wd" fsuid=1000 ouid=1000
9702 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_lpcdn.lpsnmedia.net_0.indexeddb.leveldb/LOCK" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
9702 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_lpcdn.lpsnmedia.net_0.indexeddb.leveldb/LOCK" pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
8580 audit[<dec>]: AVC apparmor="DENIED" operation="mknod" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/.org.chromium.Chromium.<alnum>" pid=<dec> comm="ThreadPoolForeg" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
7838 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/QuotaManager-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
7591 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name=<hex178> pid=<dec> comm="Chrome_SyncThre" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
6061 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/QuotaManager-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
5376 audit[<dec>]: AVC apparmor="DENIED" operation="mknod" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/.org.chromium.Chromium.<alnum>" pid=<dec> comm="ThreadPoolForeg" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
5298 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/QuotaManager-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
5158 audit[<dec>]: AVC apparmor="DENIED" operation="truncate" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/Favicons-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
4732 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name=<hex140> pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
4392 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="mknod" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/.org.chromium.Chromium.<alnum>" pid=<dec> comm="ThreadPoolForeg" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
3826 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="rename_src" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_docs.google.com_0.indexeddb.leveldb/LOG" pid=<dec> comm="ThreadPoolForeg" requested_mask="wd" denied_mask="wd" fsuid=1000 ouid=1000
3202 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="rename_src" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/IndexedDB/https_docs.google.com_0.indexeddb.leveldb/LOG" pid=<dec> comm="ThreadPoolForeg" requested_mask="wd" denied_mask="wd" fsuid=1000 ouid=1000
2887 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="truncate" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/History-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
2510 dbus-daemon[<dec>]: apparmor="DENIED" operation="dbus_method_call" bus="session" path="/org/freedesktop/PowerManagement/Inhibit" interface="org.freedesktop.PowerManagement.Inhibit" member="Inhibit" mask="send" name="org.freedesktop.PowerManagement" pid=<dec> label="snap.chromium.chromium" peer_pid=<dec> peer_label="unconfined"
2269 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/Cookies-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
2134 audit[<dec>]: AVC apparmor="DENIED" operation="rmdir" profile="snap.chromium.chromium" name=<hex152> pid=<dec> comm="ThreadPoolForeg" requested_mask="d" denied_mask="d" fsuid=1000 ouid=1000
1978 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_docs.google.com_0.indexeddb.leveldb/LOCK" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
1974 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_docs.google.com_0.indexeddb.leveldb/LOG" pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
1946 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_docs.google.com_0.indexeddb.leveldb/LOCK" pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
1680 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name=<hex174> pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
1553 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="truncate" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/Favicons-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
1344 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name=<hex172> pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
1277 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="rename_src" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/IndexedDB/https_www.youtube.com_0.indexeddb.leveldb/LOG" pid=<dec> comm="ThreadPoolForeg" requested_mask="wd" denied_mask="wd" fsuid=1000 ouid=1000
1207 audit[<dec>]: AVC apparmor="DENIED" operation="truncate" profile="snap.chromium.chromium" name=<hex146> pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
1128 audit[<dec>]: AVC apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/IndexedDB/https_docs.google.com_0.indexeddb.leveldb/LOG" pid=<dec> comm="ThreadPoolForeg" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
1116 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1135/.config/chromium/Default/QuotaManager-journal" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
1020 audit[<dec>]: AVC apparmor="DENIED" operation="mknod" profile="snap.chromium.chromium" name=<hex246> pid=<dec> comm="ThreadPoolForeg" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
1017 kernel: audit: type=1400 audit(<float>:<dec>): apparmor="DENIED" operation="open" profile="snap.chromium.chromium" name="/home/roma/snap/chromium/1123/.config/chromium/Default/IndexedDB/https_docs.google.com_0.indexeddb.leveldb/LOCK" pid=<dec> comm="ThreadPoolForeg" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000
Thank you for your bug report, what distribution/ version are you using?
The warnings mention liveperson.net, do you have some special extension enabled?