microsoft put a lot of effort into that, and constantly is.

Microsoft puts a lot of effort into making sure theirs is the first OS a student looks at and that most devices come with Windows for as many people as possible. The rest is just a consequence of other companies deciding where to put their money.

e.g. I once got a Panasonic tablet (x86_64) with Win10, Installed Ubuntu on it and compared the touch screen usage. Realised that the touchscreen OEM had a special driver for Windows, along with more features (including pointy object input, like the included pen) for 0 extra cost to Microsoft, while for Linux, there was only this generic driver (which is most probably maintained by some OSS dev) which had a similar functionality to the BIOS driver.