I left windows for Linux back in the middle of the XP days. I came back to this for contracting work and setting up a shared VR gaming computer in the living room. The absolute shit level of treatment windows users tolerate is mindboggling.
On the corporate laptops I am lent the advertising is generally minimal, but non-zero, and that surprised me. If I search I don't want whatever you are selling I want files on this computer or maybe documents on the corporate network. That struck me as inappropriate, but the constant bombard of noise on the personal computer is outrageous. Ads in the start menu, news going to sites with ads, popups, and that is before software, steam has its own too, but at least it moderates to one ad each launch.
Installing Gentoo is easier than avoiding ads on windows.