Lots of options and you'll need to spend some time RTFM. But if you already know how you want to partition your disks, then the basic installation (with a network controller!) takes about two minutes.
Then you can restart into the cli, and the real questions - what else am I going to install? - can begin.
A couple of years ago, I might have still checked protondb for Linux compatibility before making a purchase, but it seems a waste of time now. Everything that I've bought through Steam, or bought on GoG / claimed for free on Epic through Heroic has Just Worked, and has done for years. I think it got better when the Steam Deck was released; put a lot of visibility on Linux compatibility.
If you aren't in to AAA, and even then only the competitive multiplayer with intrusive anticheat, then Linux is all you need.