I’m not sure how accurate StatCounter is, given that most Linux users use adblockers. However, according to it, Linux has almost a 14% desktop share in India.
Do you have to pay for Windows still? I thought they made it free to download
While it is free to download it, the license still costs. Though they seem to let you use it unlicensed for an unlimited amount of time with some restrictions (like not being able to change the background image and an ever present watermark). At least this was true for windows 10. No telling if/when they will drop that feature though, especially if loads of people start using it unlicensed like that (though I doubt that has any effect on people using it that way or not).
Only for existing users+machines who are upgrading. New machines gotta pay up.