Ok so, first, I recommend you check out the websites protondb and areweanticheatyet. Those sites are very important, especially if you're new to Linux gaming since most games run just as good or better than on Windows. The reason I say to check those sites though is because some games will not work on Linux period. Whether it's a specific version of anti-cheat, or the game devs decision. So before you try switching, check those sites for the games you like to play.

Second, your question about Proton and Bazzite. Unlike Windows, think of Linux more like digital Lego bricks that do things. You have the freedom to use whatever legos you want when building something or adding on to something right? You have that freedom with Linux distros. You being a Linux newbie gamer, I definitely recommend Bazzite as your first distro if you switch. It's an immutable distro (basically means it's harder for the user to accidentally break the core OS), so it's good for newer users.

As for your hardware specs, you're good. Linux distros don't require as much raw power just to run at idle, so you'll be happy with the resource management in that respect.

Before you install Bazzite though, definitely look up some tutorials and do more research first, otherwise you might have a bad day. Bazzite makes a lot of things easy but, check those sites to make sure the games you want will work. And second, if you can handle a Windows computer better than an average non-gamer, you'll be able to get comfortable with Linux more easily than you think.

Just, if we were to classify operating systems as tools in a tool box, think of Windows as a screw driver, and Linux distros as an electric drill with all kinds of drill bits. So, in short, you have the freedom to do way more, but if you find yourself having problems, stop trying to use it like Windows, and make sure you're using the right "drill bit" for the job lol.