I've been using Windows 11 on my Dell laptop since May 2022. I haven't seen ANY advertising. What do I have to do to see advertising ? I use Firefox as my browser. Is that why ?
I use Windows 10 on my used Dell desktop (3.6ghz, 4core), again, no advertising.
Updates have yet to interfere with anything for either system.
I've been using Windows since Windows 386 (yes, I'm a boomer).
Also used Linux as a data processing platform, starting with Xenix, then SCO Unix (damn them forever), then Linux. Used for remote data collection platforms.
Retired 2007.