What keeps standing out to me is that windows has been moving away from the PC as Personal Computer model, they've been moving in the direction of a MS prescrib

What keeps standing out to me is that windows has been moving away from the PC as Personal Computer model, they've been moving in the direction of a MS prescribed experience of what a device running windows is, with less opportunities to customize it as you want. The trouble for MS is that the ability to run old software is one of windows greatest strengths so they can't really cut off too much without killing the golden goose leaving customers freer to move to another platform, but I think windows would be much more of an appliance if they did cut off that legacy.