>It lets the user browser with cover art, descriptions, trailers, sorting by release date, rating, etc. It keeps track of watched and unwatched movies.

Infuse [1] is a nice way to get these features on Apple TV and iOS devices while simply sharing files via SMB.

1. https://firecore.com/infuse

Infuse also supports some codecs on Apple TV that the official Plex client doesn't.

And it connects to both Plex and Jellyfin too.