sudo btrfs subvolume list / in KDE Linux lists a lot of subvolumns named like “.etc.”. I guess they are snapshots of /etc, but “Browser Snapshots” on /etc in Dolphin doesn’t list them. Who created them, and are old snapshots automatically purged?
These are created by etc-factory. (Not like the Snapper snapshots that you can browse in Dolphin.)
As of now, no. This area of functionality is likely to get overhauled a bit, so that’s likely the point at which this gets more polished.