I just moved over to jellyfin from plex. I highly recommend it. It’s way more streamlined and active than plex, with a seriously good plugin community. No investor based bloat.
The only issue I had was that jellyfin would crash on scanning my very old music library, where plex would not. To fix it, I used musicbrainz picard to correctly add idv3 tags and remove illegal characters from song names. Now, its smooth as silk.
Honestly, you should swap. They have tons of excellent plugins.. The intro skip is way better than Plex’s.
The end user clients are very solid too. Their kodi client alone is leagues ahead of the plex community one.
The only feature that plex has over jellyfin at this point in my mind is sharing content easy with people out of your home network. With Jellyfin you need to setup your own certs or reverse proxy like SWAG, or use something like tailscale.