Still losing to Vista and Windows 7 though
https://store.steampowered.com/hwsurvey/
Why would you still use Vista 
Linux is not the other in this graph. In the comparison of all OS usage, steam reports that 1.91% of users are running a Linux distro. So Linux does beat vista and 7.
That's still more than the amount of people who have VR headsets (1.89%)
this chart in the screenshot is actually the windows version usage statistics. so this is actually probably saying more people are using xp/vista than 32-bit windows 7. the combined windows/mac/linux stats do show linux having a higher share than mac or windows 7/8 though. the graph you've included does not seem to include windows 11 nor does it include any systems not using directx 10/11/12. it also says nothing about linux.
The info wasn't presented amazingly clearly, or alternatively I'm not amazingly bright. Probably both
