Fully support doesn't at all mean "all features." It means "DX12 will function well." I wouldn't even push this to be a marketing ploy.
Wine supports gaming on Linux, but not every game will work/work well.
I just saw this all and was thinking the exact same thing. Juub, my post was my opinion on the topic at hand. That's how. Your post, however, is just belligerent flamebait. Try again, did not work, lelggrekt, etc.