I switched to jellyfin about 6 months ago and I can say it is definitely worse. I’m constantly fighting to fix thumbnails, fix episodes to be in the same show, force rescans to get it to even recognize a show that already exists. I never had any of these problems with plex. Plex also defaults to transcoding which fixes a lot of gaps with clients that don’t support certain codecs. I’m often running into issues where infuse can’t play DTS so I need to reencode before I can play the movies.

Also in the process of ditching plex I switched to audiobookshelf for my audiobooks and I have to say it’s also crap. It’s constantly refusing to start playing, or pausing for a really long time before playing.

All that being said I’m not switching back. It’s been a pain but it was worth it.

That's fair. It got most of my stuff without issues, but there were a fair few I needed to fix.

However, compared to Plex, I've found the remote experience (through Tailscale) to be a lot easier and better performing than the Plex equivalent for me personally. I never have any issues connecting externally now, whereas I did all the time with Plex. Maybe I just needed to get Plex running over Tailscale but it seemed to fight that a bit.

Fair enough, but I honestly have not had a single issue with Jellyfin. It really has been on par with Plex for me.