Since you want a just works deal, I’d go with a ublue based immutable distro, my favorite is Bazzite. You can pick between KDE and Gnome, and change between them cleanly at any point. User apps auto update in the background, your system also updates while it’s running and you only need to reboot to apply. If anything ever goes wrong, you have painless rollbacks. All that with up-to-date fedora packages and kernel.
I’ve been running it on my deck for a while now and it’s never let me down so far, really pleasant experience. It generally keeps out of your way and takes care of the chores while still allowing you to mess around if you want.