We just published a whole series comparing these two, including a real migration guide if you’re already on Plex and thinking about jumping ship: https://rootlabs.us/blog/choose-your-path-plex-vs-jellyfin/
We run Plex ourselves day to day — mostly for the device support and zero-friction remote access. But Jellyfin’s had a real surge this year after Plex tripled its Lifetime Pass price.
Which one are you on, and would you switch if the other one improved the thing you don’t like about your current setup?