Who plays on PC? Need some advice

I’m thinking about building a PC to use for gaming scratch that to use for playing killer instinct and I’m just curious about minimum specs. Surprisingly I work in the tech industry but I’m a consultant so I don’t really deal with gadgets and widgets too much but I’m just generally looking for a good PC to buy if that would work without having any issues that I don’t have to worry about diving into crazy configurations in order to get it to work. Thanks!!!

I currently use a Surface Book 2 15 and it was supposed to be decent for gaming but there were some power issues that prevent it from working optimally that seemed to have never been fixed. For comparison I play on Xbox series x