Setting up the server to be externally accessible was easy to me since I have lots of experience hosting stuff both from home and from VPSs. Although not as easy as with Plex of course, which will even automatically forward the ports for you if you have Upnp enabled in your router.

It’s the clients that are the issue. They are not as easy to use for less technologically inclined people, my dad already struggled with the switch from Netflix to Plex. And for many of my users there isn’t even a Jellyfin app available, like for older Samsung smart TVs for example