Install KVM on linux to Play fortnite

Hey.
I am currently testing some VMs to see wich has the best performamce. But for now all VMs ghat run in windows are reallly slow or dont support dx11. So i googled a little and came acrkss a thread saying that a KVM is the best VM of them all almost no performance drop or anything like that. However the person didnt say how to install it and since i am a noob when it comes to linux i came here hoping that someone can help me do a GPU passtrough and install windows 10 in a KVM. I have 2 GPUS integrated and normal and the guys over at the linux discord said it is good. So please if you can help me contact me on discord Ryuk#0083