Lxd snap fails at boot time on Debian 11 (cgroup2)

[mborzecki]

@TimSmall

apparmor="DENIED" operation="open" profile="snap-update-ns.lxd" name="/sys/fs/cgroup/system.slice/snap.lxd.daemon.unix.socket/cgroup.freeze" pid=2238 comm="5" requested_mask="w" denied_mask="w" fsuid=0 ouid=0

I have no idea why the cgroup is snap.lxd.daemon.unix.socket and not snap.lxd.daemon.service.

Can you run systemctl cat snap.lxd.daemon.unix.socket and attach the output?