There’s plenty of need if you’re one of the millions of people that has a device plugged into their TV like an Apple TV , Android TV or Roku. None can use a web interface. This is what keeps me on Plex despite preferring the open source nature of Jellyfin.
There was a discussion here recently[0] where many people recommended Jellyfin in conjunction with its apps[1] for Android, Android TV, Roku, etc. I have never used Jellyfin before but their recommendations made me put it on my list of things to look into.
I’ll caveat by saying it’s been a while since I looked into it but last I checked the UIs weren’t super intuitive. This is a rare tech thing my entire family uses so that’s a much bigger factor than it usually is for me. I admit there’s also an extent to which Jellyfin can’t win here: my family always knows the Plex apps very well, switching would be a pain and (from their perspective at least) not have any notable advantages.
I use jellyfin with their androidtv app running on whatever the amazon 4k hdmi dongle is that can decode h265/av1 for this reason and that's why I was asking. While we're on the topic, hardware for the tv that runs android, does h265 and av1, has frequent security updates and isn't spying on you nonstop is kind of non existent as well. If someone figured out who manufactures the amazon firestick and can get something very similar with stock android (or even better lineageos) I would pay double what I paid for the amazon spy box version....