Im sure people do see these ads, and its definitely starting to go a bit far, but I cannot for the life of me figure out how. Ive never seen anything like this using multiple personal and work windows machines for ~10+ hours a day, every day.
Work makes sense, I believe its a couple of GPOs, but even at home when I boot a fresh image I tick like 3 boxes and just never see any ads.
The only situation I can think of is prebuilt machines and laptops with preloaded configurations that people dont bother to change, but even then im pretty sure 5 minutes in settings will sort it out.