For me unfortunately the spin has been broken: when trying to login into KDE Plasma Wayland session, I see a frozen image of my laptop's vendor logo (Dell) or the last "black screen image available" (like the underline cursor in top-left corner).

The session works if I login through another tty (F2 or any other F key) and type `startplasma-wayland`, but not through SDDM. X11 works fine too. It's just the transition from SDDM -> Plasma wayland, for some reason.