This has been the case for a while. I worked on the Windows Desktop Experience Team from Win7-Win10. Starting around Win8, the designers had full control, and most crucially essentially none of the designers use Windows. I spent far too many years of my career sitting in conference rooms explaining to the newest designer (because they seem to rotate every 6-18 months) with a shiny Macbook why various ideas had been tried and failed in usability studies because our users want X, Y, and Z. Sometimes, the "well, if you really want this it will take N dev-years" approach got avoided things for a while, but just as often we were explicitly overruled. I fought passionately against things like the all-white title bars that made it impossible to tell active and inactive windows apart (was that Win10 or Win8? Either way user feedback was so strong that that got reverted in the very next update), the Edge title bar having no empty space on top so if your window hung off the right side and you opened too many tabs you could not move it, and so on. Others on my team fought battles against removing the Start button in Win8, trying to get section labels added to the Win8 Start Screen so it was obvious that you could scroll between them, and so on. In the end, the designers get what they want, the engineers who say "yes we can do that" get promoted, and those of us who argued most strongly for the users burnt out, retired, or left the team. I probably still know a number of people on ...
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