Which is one of the things that people seem to forget about with Microsoft when they think that them pushing Linux is some nefarious plot to kill Linux and get everyone on Windows. At this point, it's like 12% of their total revenue. Not insignificant, but they're likely going to see far more growth pushing products related to Azure, which most instances are going to be running some sort of Linux VMs.

Microsoft saw the writing on the wall a while ago, and knows that the desktop and even embedded environment is a small slice of the computing pie. They would obviously still prefer to own 100% of that, but they also saw that there's a finite number of users and devices that'll use Windows, while there's effectively an infinite number of things that people can put on their cloud services. Even if it has to be a "competing" OS, they're making a shitton of money regardless.