Comment 3 for bug 1912773

I've done more digging and I think the regressing happened sooner, but I only rebooted it on the day I noticed it wasn't working. I decided to see when the system was actually last rebooted by using:

$ last reboot | less

reboot system boot 5.8.0-40-generic Fri Jan 22 11:44 still running
reboot system boot 5.8.0-40-generic Fri Jan 22 10:15 - 11:44 (01:28)
reboot system boot 5.4.0-64-generic Fri Jan 22 10:06 - 10:14 (00:07)
reboot system boot 5.8.0-40-generic Fri Jan 22 10:03 - 10:14 (00:11)
reboot system boot 5.8.0-40-generic Fri Jan 22 08:23 - 10:02 (01:39)
reboot system boot 5.8.0-40-generic Fri Jan 22 08:10 - 08:23 (00:13)
reboot system boot 5.4.0-64-generic Fri Jan 22 08:06 - 08:09 (00:03)
reboot system boot 5.8.0-36-generic Fri Jan 22 07:59 - 08:05 (00:06)
reboot system boot 5.8.0-38-generic Fri Jan 22 07:53 - 07:58 (00:05)
reboot system boot 5.8.0-40-generic Fri Jan 22 07:45 - 07:52 (00:07)
reboot system boot 5.8.0-40-generic Fri Jan 22 07:39 - 07:40 (00:00)
reboot system boot 5.8.0-40-generic Fri Jan 22 07:35 - 07:38 (00:03)
reboot system boot 5.8.0-36-generic Sun Jan 10 03:43 - 07:34 (12+03:51)
reboot system boot 5.4.0-58-generic Mon Jan 4 10:00 - 03:42 (5+17:42)

You'll see everything was fine on the 10 Jan 2021 and 4 Jan 2021. That means the regression happened on or after these dates. I've rerun the awk command to see what packages were changed in that time and I have:

$ awk 'BEGIN{ start="0" } { if($0 ~ /Log started: 2021-01-05/) { start="1"} if ( start == "1" && $0 ~ /Unpacking.*over/) {gsub(/[\s\t)( ]+/,"",$5); printf("%s=%s ", $2 , $5)}}' /var/log/apt/term.log

libproxy1-plugin-gsettings:amd64=0.4.15-10ubuntu1.1 libproxy1-plugin-networkmanager:amd64=0.4.15-10ubuntu1.1 libproxy1v5:amd64=0.4.15-10ubuntu1.1 libproxy1v5:i386=0.4.15-10ubuntu1.1 python-apt-common=2.0.0ubuntu0.20.04.2 libproxy-tools=0.4.15-10ubuntu1.1 python3-apt=2.0.0ubuntu0.20.04.2 p11-kit-modules:amd64=0.23.20-1build1 libp11-kit0:amd64=0.23.20-1build1 libp11-kit0:i386=0.23.20-1build1 firefox-locale-en=84.0+build3-0ubuntu0.20.04.1 libopenexr-dev=2.3.0-6ubuntu0.2 libopenexr24:amd64=2.3.0-6ubuntu0.2 linux-generic-hwe-20.04=5.4.0.58.61 linux-image-generic-hwe-20.04=5.4.0.58.61 linux-headers-generic-hwe-20.04=5.4.0.58.61 linux-headers-generic=5.4.0.58.61 firefox=84.0+build3-0ubuntu0.20.04.1 linux-libc-dev:amd64=5.4.0-58.64 p11-kit=0.23.20-1build1 libwavpack1:i386=5.2.0-1 libwavpack1:amd64=5.2.0-1 linux-generic-hwe-20.04=5.4.0.59.62 linux-image-generic-hwe-20.04=5.4.0.59.62 linux-headers-generic-hwe-20.04=5.4.0.59.62 libatopology2:amd64=1.2.2-2.1ubuntu2.2 libasound2:i386=1.2.2-2.1ubuntu2.2 libasound2:amd64=1.2.2-2.1ubuntu2.2 libasound2-dev:amd64=1.2.2-2.1ubuntu2.2 libasound2-data=1.2.2-2.1ubuntu2.2 libdrm-common=2.4.101-2 libdrm2:amd64=2.4.101-2 libdrm2:i386=2.4.101-2 xserver-common=2:1.20.8-2ubuntu2.6 xserver-xorg-legacy=2:1.20.8-2ubuntu2.6 libegl-dev:amd64=1.3.1-1ubuntu0.20.04.1 libegl1:amd64=1.3.1-1ubuntu0.20.04.1 libopengl-dev:amd64=1.3.1-1ubuntu0.20.04.1 libopengl0:amd64=1.3.1-1ubuntu0.20.04.1 libglx-dev:amd64=1.3.1-1ubuntu0.20.04.1 libgl-dev:amd64=1.3.1-1ubuntu0.20.04.1 libgl1:amd64=1.3.1-1ubuntu0.20.04.1 libgl1:i386=1.3.1-1ubuntu0.20.04.1 libglx0:i386=1.3.1-1ubuntu0.20.04.1 libglx0:amd64=1.3.1-1ubuntu0.20.04.1 libgles-dev:amd64=1.3.1-1ubuntu0.20.04.1 libglvnd-dev:amd64=1.3.1-1ubuntu0.20.04.1 libgles2:amd64=1.3.1-1ubuntu0.20.04.1 libgles1:amd64=1.3.1-1ubuntu0.20.04.1 libglvnd0:amd64=1.3.1-1ubuntu0.20.04.1 libglvnd0:i386=1.3.1-1ubuntu0.20.04.1 libglx-mesa0:i386=20.0.8-0ubuntu1~20.04.1 libglx-mesa0:amd64=20.0.8-0ubuntu1~20.04.1 xserver-xorg-core=2:1.20.8-2ubuntu2.6 libdrm-amdgpu1:amd64=2.4.101-2 libdrm-amdgpu1:i386=2.4.101-2 libdrm-intel1:amd64=2.4.101-2 libdrm-intel1:i386=2.4.101-2 libdrm-nouveau2:amd64=2.4.101-2 libdrm-nouveau2:i386=2.4.101-2 libdrm-radeon1:amd64=2.4.101-2 libdrm-radeon1:i386=2.4.101-2 libgl1-mesa-dri:i386=20.0.8-0ubuntu1~20.04.1 libgl1-mesa-dri:amd64=20.0.8-0ubuntu1~20.04.1 libosmesa6:i386=20.0.8-0ubuntu1~20.04.1 libosmesa6:amd64=20.0.8-0ubuntu1~20.04.1 libegl-mesa0:amd64=20.0.8-0ubuntu1~20.04.1 libglapi-mesa:amd64=20.0.8-0ubuntu1~20.04.1 libglapi-mesa:i386=20.0.8-0ubuntu1~20.04.1 libgbm1:amd64=20.0.8-0ubuntu1~20.04.1 google-chrome-stable=87.0.4280.88-1 update-notifier=3.192.30 update-notifier-common=3.192.30 tzdata=2020d-0ubuntu0.20.04 firefox=84.0.1+build1-0ubuntu0.20.04.1 firefox-locale-en=84.0.1+build1-0ubuntu0.20.04.1 libegl1-mesa-dev:amd64=20.0.8-0ubuntu1~20.04.1 libgles2-mesa-dev:amd64=20.0.8-0ubuntu1~20.04.1 libxatracker2:amd64=20.0.8-0ubuntu1~20.04.1 linux-firmware=1.187.6 linux-generic-hwe-20.04=5.8.0.34.37~20.04.20 linux-image-generic-hwe-20.04=5.8.0.34.37~20.04.20 linux-headers-generic-hwe-20.04=5.8.0.34.37~20.04.20 linux-headers-generic=5.4.0.59.62 linux-libc-dev:amd64=5.4.0-59.65 mesa-va-drivers:amd64=20.0.8-0ubuntu1~20.04.1 mesa-va-drivers:i386=20.0.8-0ubuntu1~20.04.1 mesa-vdpau-drivers:amd64=20.0.8-0ubuntu1~20.04.1 mesa-vdpau-drivers:i386=20.0.8-0ubuntu1~20.04.1 mesa-vulkan-drivers:i386=20.0.8-0ubuntu1~20.04.1 mesa-vulkan-drivers:amd64=20.0.8-0ubuntu1~20.04.1 nautilus-sendto=3.8.6-3 obs-studio=26.1.0-0obproject1~focal xserver-xephyr=2:1.20.8-2ubuntu2.6 xwayland=2:1.20.8-2ubuntu2.6 libgl1-mesa-dev:amd64=20.0.8-0ubuntu1~20.04.1 libopenjp2-7:amd64=2.3.1-1ubuntu4 libopenjp2-7:i386=2.3.1-1ubuntu4 tzdata=2020f-0ubuntu0.20.04 lsof=4.93.2+dfg-1 xdg-utils=1.1.3-2ubuntu1.20.04.1 tar=1.30+dfg-7 linux-generic-hwe-20.04=5.8.0.36.40~20.04.21 linux-image-generic-hwe-20.04=5.8.0.36.40~20.04.21 linux-headers-generic-hwe-20.04=5.8.0.36.40~20.04.21 linux-headers-generic=5.4.0.60.63 linux-libc-dev:amd64=5.4.0-60.67 dnsmasq-base=2.80-1.1ubuntu1 xserver-common=2:1.20.9-2ubuntu1.1~20.04.1 xserver-xorg-core=2:1.20.9-2ubuntu1.1~20.04.1 xserver-xorg-legacy=2:1.20.9-2ubuntu1.1~20.04.1 xwayland=2:1.20.9-2ubuntu1.1~20.04.1 python3-pil:amd64=7.0.0-4ubuntu0.1 xserver-xephyr=2:1.20.9-2ubuntu1.1~20.04.1 libnss-systemd:amd64=245.4-4ubuntu3.3 libudev1:i386=245.4-4ubuntu3.3 libudev1:amd64=245.4-4ubuntu3.3 libudev-dev:amd64=245.4-4ubuntu3.3 udev=245.4-4ubuntu3.3 systemd-timesyncd=245.4-4ubuntu3.3 systemd-sysv=245.4-4ubuntu3.3 libpam-systemd:amd64=245.4-4ubuntu3.3 systemd=245.4-4ubuntu3.3 libsystemd0:amd64=245.4-4ubuntu3.3 libsystemd0:i386=245.4-4ubuntu3.3 libapt-pkg6.0:amd64=2.0.2ubuntu0.2 apt=2.0.2ubuntu0.2 apt-utils=2.0.2ubuntu0.2 google-chrome-stable=87.0.4280.141-1 ubuntu-release-upgrader-gtk=1:20.04.29 ubuntu-release-upgrader-core=1:20.04.29 update-manager=1:20.04.10.1 update-manager-core=1:20.04.10.1 python3-distupgrade=1:20.04.29 python3-update-manager=1:20.04.10.1 update-notifier=3.192.30.3 update-notifier-common=3.192.30.3 libnetplan0:amd64=0.100-0ubuntu4~20.04.3 netplan.io=0.100-0ubuntu4~20.04.3 mutter-common=3.36.6-1ubuntu0.20.04.2 gir1.2-mutter-6:amd64=3.36.6-1ubuntu0.20.04.2 libmutter-6-0:amd64=3.36.6-1ubuntu0.20.04.2 jq=1.6-1 libjq1:amd64=1.6-1 linux-firmware=1.187.7 linux-generic-hwe-20.04=5.8.0.38.43~20.04.23 linux-image-generic-hwe-20.04=5.8.0.38.43~20.04.23 linux-headers-generic-hwe-20.04=5.8.0.38.43~20.04.23 linux-headers-generic=5.4.0.62.65 linux-libc-dev:amd64=5.4.0-62.70 steam-launcher=1:1.0.0.67 mutter=3.36.6-1ubuntu0.20.04.2 signal-desktop=1.39.4 linux-firmware=1.187.8 linux-firmware=1.187