I rebased from Silverblue 34 to Kinoite 35 when it released, and followed these steps. I had no issues, but recently installed Cockpit and it pointed out to me an error in the SDDM user@.service that it found.
I traced the error back to a missing entry in the /etc/shadow file.
As we are nearing F36 release and others may be looking to rebase as well, they may find this useful in making the transition error-free.