In the case of net_cls cgroup mounting over cgroup2…
I use Mullvad VPN and I think I found a solution to my problem
net_cls interfering with lxd · Issue #3651 · mullvad/mullvadvpn-app · GitHub
Mullvad has updated there Github README.md file to include information about
supported Mullvad Environment Variable
**TALPID_NET_CLS_MOUNT_DIR**
- On Linux, forces the daemon to mount thenet_cls
controller in the specified directory if it isn’t mounted already.
The Mullvad Bug report is:
GitHub - mullvad/mullvadvpn-app: The Mullvad VPN client app for desktop and mobile
The Mullvad Github README file describes the above Environment Variable and several others that Mullvad can utilize if configured.