Settings when running two servers using the same media folder

[Mel_Gibson_Real]

You can run jellyfin off a media folder that is read only. To prevent having to manage metadata on both servers use radarr and sonarr to add proper nfo, naming, and images.

So I would have the sync folder be read only for the jellyfin servers, and then have an arr stack that can write for adding metadata and images. Not sure what your current setup is but shouldnt be to hard to implement.