[BizarroLand]

Well, maybe, at least for Windows. If they rewrote their whole stack from the ground up for Win 12, eliminated everything that wasn't performant, and gave everyone the tools needed to adapt, 2 things would happen:

1: Windows would be insanely fast and incredibly unlikely to ever bog down or bluescreen for any reason, and 95% of my gripes with it as an IT professional would vanish into digital smoke.

2: Microsoft would be eaten alive by all of the people and companies suddenly finding the money and time to switch to Linux/OSX or just plain refusing to upgrade because an old printer driver or some bit of obscure hardware that only 13 people in the world use won't work on the new windows kernel without an extensive rewrite and the company that made it doesn't exist anymore.