Steam OS is an idea barely out in the wild and hasn't from what I've seen had very heavy traction. Compare that small list of OLD games with a real list of games PC can play and I'll yawn and fall asleep while you go down the PC list cause it will take you so long. It's not even really on the same playing field.
As for driver issues. https://www.youtube.com/watch?v=iYWzMvlj2RQ
It's a known issue.