Comment 18 for bug 2011806

Same issue here, I have never seen any snaps opening from the dash (both Firefox and Brave) and they both put out a cgroup error in the syslog. Starting from terminal works and without the cgroup error in the log.
Maybe also noticable, I see snap core20 and core22 both installed and cannot remove core20 because it is being used by firefox (but not brave which also does not start).

The list of snaps installed:

Name Version Rev Tracking Publisher Notes
bare 1.0 5 latest/stable canonical✓ base
brave 1.49.128 218 latest/stable brave -
core20 20230308 1852 latest/stable canonical✓ base
core22 20230316 583 latest/stable canonical✓ base
firefox 111.0-2 2453 latest/stable/… mozilla✓ -
gnome-42-2204 0+git.09673a5 65 latest/stable canonical✓ -
gtk-common-themes 0.1-81-g442e511 1535 latest/stable/… canonical✓ -
kde-frameworks-5-96-qt-5-15-5-core20 5.96.0 7 latest/stable kde✓ -
keepassxc 2.7.4 1645 latest/stable keepassxreboot -
libreoffice 7.5.1.2 270 latest/stable canonical✓ -
snap-store 41.3-76-g2e8f3b0 935 latest/stable/… canonical✓ -
snapd 2.58.3 18596 latest/stable canonical✓ snapd
snapd-desktop-integration 0.1 71 latest/stable/… canonical✓ -