I made the switch 2-3 months ago, and I went with Kubuntu. It’s absolutely fine, but if I knew then what I know now I’d likely have gone pop or mint, just to not bother with snaps (although they’re pretty easy to get rid of).
As others have said, get Ventoy on a USB stick, use that to have a play with a few live environments and get a feel for what desktop environment you might want to use. KDE and Cinnamon I think are pretty good Desktop Environments if you’re used to Windows, but have some fun with it and also try a few that are very different to windows, you might find yourself liking them (I really like using i3 on my laptop where the screen is fairly low res)
I’ve since graduated to scripting stuff to launch through wine (mostly chummer5 for shadowrun) but proton was a great lazy way of doing it