Gaming on Linux is ridiculously easy. And for some, easier than on Windows.
It's only really in VR where I notice Windows being better. On average, my games run better on Linux than on Windows, which is crazy considering they were made for Windows.
There are some games that use kernel-level anti-cheat (essentially a rootkit for your PC), these don't work in Linux, and Linux devs have made clear they won't accept inclusions of rootkits in the kernel.