Ah, in that case you will probably need to go into the container to do the backup. I avoid mounted volumes.

As your user account, just run something like:

podman volume export VOLUME >backup.tar

Or from another machine, say you want to do a remote backup from your server:

ssh user@host podman volume export VOLUME | zstd -o backup.tar.zstd

I think you have to go into desktop mode to find the setting to disable shader pre-caching but it’s 100% better with it disabled!