Some tips on how to compare a "standard dir" to a mounted borg backup (which AFAIK itself uses fuse)
If you immediately have permissions problems and no traversal is performed try mounting the borg backup less restrictively with _allow_other_ e.g. sudo borg mount -o allow_other /mnt/borg/repo/ /tmp/borgmount/
If you do a compare of directories you know to be the same, but these same files are not all being picked up, make sure to set -T df (from https://github.com/sahib/rmlint/issues/360)
Some tips on how to compare a "standard dir" to a mounted borg backup (which AFAIK itself uses fuse)
If you immediately have permissions problems and no traversal is performed try mounting the borg backup less restrictively with _allow_other_ e.g.
sudo borg mount -o allow_other /mnt/borg/repo/ /tmp/borgmount/
If you do a compare of directories you know to be the same, but these same files are not all being picked up, make sure to set
-T df
(from https://github.com/sahib/rmlint/issues/360)