I have 2 computers on kvm switch. My main computer is using Linux. I do everything on it. My second computer is a windows computer strictly used for gaming.
I tried dual booting but it was a pain. Gaming on Linux has issues.
Using a KVM switch is amazing. Also, since I only use my windows computer for only gaming. I have never had issues with windows. No virus or other issues.
I love using Linux as my main os, been doing that for many years.
I only game 1 hour a day. It's fun. You just need to learn discipline.