I honestly don't like the new ui. I've set the old legacy theme back on mine. Except the Jellyfin app on android for some reason doesn't allow me to set legacy ui so I'm stuck with the ugly new one there. One reason is I have created my own own images and created libraries on my homescreen with those nice images. So, that new top bar with all the libraries is unnecessary. I also dont care for the new menu to the dashboard and everything.