I’ve been using windows 11 since general release and have had zero issues. Not with ads, not with updates, not with one drive. Well, unless you count clicking away pop-ups to use new features from time to time. Not once has a file been saved to onedrive.
I started watching The Nanny a few days ago (have seen a lot on tv, but never everything) and in one of the first episodes they make a joke about being worried about Global Warming. It was lighthearted, not very serious. That was 1993.