A permissions matter about metadata on Linux

[TheDreadPirate]

Why not use sudo? Another option is to create a new group and add yourself and jellyfin to this group, recursively chgrp to set this new "media" group (or whatever you want to call it) as the group owner. To ensure that newly created files and folders retain this group ownership you'd need to set a group sticky bit.

Code:

sudo chown -R g+s /media/vast/MediaFilesDirectory