If you're like me, and just don't want to shut off Linux to play some games, I'd recommend looking into virtualising Windows and PCI passthroughing your GPU. I just change the channel on my monitor to switch between Linux and Windows, but if you have two monitors you can dedicate one to each OS. You don't need a hardware kvm switch, evdev lets you swap keyboard/mouse control between host and guest OS with LCtrl+RCtrl, and audio goes through Pulseaudio.

You get to avoid using WSL and get the full Linux experience without compromising gaming – with few exceptions: the more extreme anti-cheat software detects VM usage, and that applies to a very small set of AAA games.