https://bindfs.org/docs/bindfs.1.html
-u, --force-user, -o force-user=...
Makes all files owned by the specified user. Also causes chown on the mounted filesystem to always fail.
http://man7.org/linux/man-pages/man8/mount.fuse.8.html
uid=N
Override the st_uid field set by the filesystem (N is numeric).
mount
,mount.fuse
,bindfs
, ... ? – sourcejedi Oct 25 '18 at 14:37