You're making a huge assumption here. I think that's a really small percentage. Most people game on PC because certain games they like to play are only on PC, or are much better suited to PC, or because their friends are on PC, or because they want to play on the go (Steam Deck is very recent and still not widely used), or because they need to have a PC anyway. Or because they grew up with it at home/in the neighborhood because there was no money for a console. Or because "Because they like building their system", I'm going to peg at <10%.