Go for it. Switching to Linux has never been easier than it is today. I still keep a Windows virtual machine for when I need to use specific Windows applications, but aside from that I have been running Linux on my work and gaming machines for two years now with zero issues.
I’m surprised to hear you had problems with Proton - in my experience it has been seamless, although there are still some titles that don’t work so well with it. I don’t play any games that require anti-cheat, though, so there is that.
It’s never easy to say which distro is best, because every user and every machine is different. I personally recommend Nobara instead of Fedora, as a lot of the post-install tweaking is already done for you and it should even install the latest Nvidia drivers for you as well.