I don't know if it's bad UX or UI, but I do agree there's something really disturbing with jellyfin's options and tweaks... More than once I lost my way and had to click on every option button again to find a specific thing to disable/enable something?
Now It's easier after I have passed some time in the options/user menu, but some tweaks and options are not very intuitive.
Other than that, Jellyfin is awesome and I can't believe something as good as Jellyfin is free and open source. Thanks to all devloppers behind this, I hope they will stay true to open source and jellyfin will last forever !! But I doubt it.