90% is a bit of an audacious figure to quote? How many of us have our entire collection of games on steam? :L not trying to start a war or nit pick here... surely it doesn't matter what OS it runs?
I think it's only 25% or so of games on Steam that run on Linux.
How it does not? Its better than the PS4 Pro, just looking a the basic specs and how it will improve current and future games.