As a hobbyist game developer, I would love to see the field move away from being so windows focused. It's pretty annoying that every other kind of development I do works well enough across all platforms, but when I want to do game dev I pretty much have to boot into windows.

And as a game user, I would also just rather have games be cross platform, than use whatever OS specific optimizations happen now. But I've also never really cared too much about having high framerates, high resolution, millions of polygons, etc.