There used to be an independent video game store in West Edmonton Mall around 20 years ago, I'm not sure when it went out of business, but they were selling console & PC games for $70±, I think it was so they could cover their rent!
That adverting your referring to can basically be turned off with a few Windows settings.
The only advertising I've seen in the last couple of years on Windows 11 is Outlook ads because I don't have a Microsoft 365 subscription. That said, it took me only a couple days to get used to ignoring those ads. I would prefer they weren't there but it's not a big deal.
I've been using Windows 11 since the day it was released. No complaints whatsoever from me but then again, I always like trying new things. It's been ROCK SOLID running my Dell XPS 8940 desktop.