I wonder how one investigates the cause of denied access in a case like that:
uid=0(root) gid=0(root) groups=0(root)
root@host:/tmp# chown root .mount_app
chown: cannot access '.mount_app': Permission denied
root@host:/tmp# ls -la .mount_flameshot
ls: cannot access '.mount_app': Permission denied
root@host:/tmp# stat -c "%U" .mount_app
stat: cannot stat '.mount_app': Permission denied
Addiotional Info:
In this specific case the file is somehow related to snap.
