And if your only use case is gaming, you should use Windows because that's the platform game developers target. Linux will behave differently (sometimes better, sometimes worse), and you're unlikely to get support if there's a Linux-specific issue, and multiplayer gaming still isn't great on Linux due to anticheat either not working on Linux or anti-cheat flagging Linux users on accident.

That being said, if gaming was truly the only thing I used a computer for, I'd switch to console gaming. The experience is usually smoother since devs only need to target a handful of hardware configurations.

However, if gaming is secondary to the main purpose of the computer, Linux is a great option if it fits your workflow. It fits mine and I've been Linux-only for ~15 years now (I keep a Windows install for testing stuff, not gaming), and I actually switched to Linux knowing that gaming wasn't really going to be a thing (I played a handful of games, like Minecraft and Factorio, but mostly used it for school+work).

I think Linux is great, but don't switch just because of some benchmarks, switch because it fits with your overall computer use cases.