Here are the SELinux Troubleshooter screenshots:
I wonder what that was about. /media/nv is not a system drive, it’s a data drive with common data I use between OS installations like a shared videos/pictures/downloads folder, VMs, portable apps… yk.
No other alert came up (e.g. about other drives mounted @ /media), I haven’t come across this before (one similar thing is snapd attempting to read a snapper BTRFS snapshot - which was also a one-time occurence).
The only snaps currently installed are bare, core20 and the snapd snap. An auto-refresh was running, if that helps.