Have you set up jellyfish at your home, given access to a friend outside of your network who could not setup Jellyfin themselves, and successfully got them playing on their TV, table tablet, and/or phone? Have you been able to set them up without them having to call you every week?

Yes. It’s very easy. It might not have used to be easy but it is for the last couple of years. Dead simple. About a dozen people use my Jellyfin server across TV’s, phones, tablets, laptops. None of them are what I would call techies. It’s as simple for them as Netflix.