Bleeding edge or easy to use, take your pick. I think Suse and Endeavour are your best bets for both but neither do both perfectly.

As for Wayland, assume it doesn’t work but maybe you’ll get lucky. As for lightness, I find Gnome and KDE to work perfectly fine even under performance constrained environments. Depends on what you call “light”, I guess. The biggest differentiator these days is (the lack of) hardware video acceleration, on all platforms.