U-Blue in general is a nice collection of images because not only are there various unofficial options, but a lot of things like RPMFusion, etc. are preconfigured in their versions of the main editions (SilverBlue, Kinoite, Sericea, Onyx).
Or you can just rebase regular SilverBlue (or one of the three other official variants) to one of those images if you’re running it already. Can roll back if you don’t like it.
I doubt there’ll be an official edition until Cinnamon has full Wayland support since Fedora is going all in on that now.