I’m going to try an answer here, although my previous posts disappeared
in to the discourse black hole.
These files are likely remnants from past backup/restore operations -
possibly failed.
You have two options -
- use
qvm-move-to-vmto move the whole .backup#restore-5jb_yph2 directory to some other qube, just in case you might be able to do something with it in the future. - Delete the whole directory - just
sudo rm -rf .backup#restore-5jb_yph2
I also suggested you look in the .cache directory - there’s something
sizable lurking in there. Again use ls -al to list all files and
directories, including the hidden ones.
I never presume to speak for the Qubes team.
When I comment in the Forum I speak for myself.