I had been using Plex for many years and got sick of the way they try to force things like podcasts and web shows on you. I knew that advertising and library scanning was on the way if it wasn't already there so I switched to Jellyfin a couple of years ago. I have a number of friends and family that use my server as well and none of them have complained.
I tried Jellyfin. Although it is great for an open source project, it lacks polish. Especially on the android TV app, there are multiple obvious problems. I encountered too dealbreakers within the first half hour of usage:
- Resume does not work reliably
- Subtitles are ugly and un-configurable
I will keep monitoring it from time-to-time, and switch from Plex as soon as these 2 problems are fixed. Thanks for recommending, I have been on the lookout for such an app for a long time.