Made the switch from Plex to jellyfin last week. Runs so much smoother, far fewer issues, my NAS isn’t lighting itself on fire, and I don’t have unwanted features being shoved down my throat every time I open the client app. A few small UI things I don’t like, but Plex had just fucked up the exact same UI element on me anyway.
I think it’s finally time I get around to setting up a second sonarr instance to customize for anime.