Now introduce a choice… and things might change.
With the vast majority of software nowadays living in the browser, your OS matters less and less, especially for a business that buys machines for its employees.
At this point I would not be surprised if MS started to subvent the PC manufacturers to favour Windows over Linux if that ever comes to that.
I've always assumed this has been happening since the 90s.
I'm sure there are readers with actual insight here :)