Yeah, I know various people who aren’t very knowledgeable in tech (even including a few boomers) that use Linux as their only OS. They are all lefties or are associated with lefties, so I think this is more of a political than skill issue. Most people do what seems more convenient, but the convenience now lies more in what OS is preinstalled, what is required by the workplace, what OS has been forcefully pushed onto consumers for decades etc.