There is a huge disparity in the quality, UX, and features of the clients. Many clients are missing basic features like scrubbing, subtitles, saving position, etc… Many platform-specific clients are people’s pet projects and quickly lose support or are half baked.

Furthermore my wife and kids are not technical the way I am—when things don’t work properly they can’t debug & diagnose, they simply can’t use it. And I personally don’t want to spend my time diagnosing why I can’t fast-forward a TV show and so on.

The quality and features of JellyFin are nowhere close to Plex. I have used both for years.