Jellyfin isn't a simple viewer over a filesystem, you have to make a library and give it folders to ingest. It enforces an artist-album-track structure of media, so if you don't like that structure you'll be fighting Jellyfin more than using it.
Yes but you can actually have Copyparty run as a server similar to Jellyfin and have the same thing too?
Am I missing something that I am not looking at? But won't jellyfin have the same issue, I think that plex has servers that you can connect from outside but the GP wanted to move to jellyfin and I was talking about that.
And, you can even have plex like thing by just having Cloudflare Tunnels/Tailscale + Copyparty too.
So I used copyparty[0] and used VLC and set a username and password.
I recommend copyparty if you just want something quick and easy actually. Just try it out on cheap VPS and just run it and forget it.
https://github.com/9001/copyparty