I was expecting more discussion on this. The closest thing to info on this I've seen is statcounter's Desktop OS share. According to that Windows has actually

I was expecting more discussion on this. The closest thing to info on this I've seen is statcounter's Desktop OS share. According to that Windows has actually lost 15-20% marketshare in the last 10 years. It doesn't look like linux is stealing it though, OSX and "unknown" seem to be the biggest hitters. For all I know unknown is still Windows!