You tell me Android TV (on a google chromecast) is not user friendly?
Same for Android? (Can’t speak for iOS. Not using that)

Bro, even my mother uses it and she uses a single browser tab for research and struggled to understand why a password manager is more advantageous than a piece of paper. Meaning she isnt a tech wiz beyond common sense.

Now playback is another story. Jellyfin still is a bit struggling playing back all files consistently out of the box that’s true.
Some playback quirks like waiting for the transcode buffering on a black screen is usual for me but users expect feedback that something is happening.