Microsoft in their infinite wisdom has replaced the Hide Desktop icon with Copilot.

People don't switch just because of some minor inconvenience (as if Linux didn't have any...) and outside of Lemmy/the Fediverse echo chamber very few people are concerned about privacy. They will switch (maybe) if the new tool works better for them than thge previous one. Otherwise, why should they bother? Linux is my primary OS since many years, but it isn't everybody's cup of tea.