As far as I can tell none of the options listed are quite suitable. They are either to unstable or way to out of date. I like Rocky Linux but it doesn’t seem to be desktop focused as far as I can tell. I would use Debian but Debian doesn’t have the greatest security defaults. (No selinux profiles out of the box)
Check your requirements … I get that you may need 2 year support and you cannot control that, but are you really going to dismiss one of the greatest Linux distros of all time because the “defaults” are not to your liking? You know you can configure it however you want after the installation right?
If you are going to value stability and nice wallpaper with the same importance, you’ll never find a “quite suitable” match