Here's my data point: I use Jellyfin and I am satisfied with it.
My use case: movies and TV shows, streaming from mobile, PC, or smart TV with auto-downloaded subtitles and varying stream quality. Heavy use of the "watch together" feature. (Plex watch together is horrible compared to Jellyfin.)
My use case: movies and TV shows, streaming from mobile, PC, or smart TV with auto-downloaded subtitles and varying stream quality. Heavy use of the "watch together" feature. (Plex watch together is horrible compared to Jellyfin.)