I know, for some features Plex is better, and for a very few features Plex will always be better because it's centralized. Jellyfin, being self-hosted, doesn't have an easy way to share and combine libraries from multiple users, and no single "login" page like Plex. This may be annoying for users, but we know all the problems that centralization comes with.

But this makes me think about the fediverse. What if Jellyfin servers could federate with each other? I wonder if anybody is working on such a project.

Edit: okay, apparently I found this feature request on the Jellyfin features tracker.