I am from india. These numbers are inflated due to our population and government office pc using linux (ubuntu). These office pcs just require a chrome browser and all the work is done on the browser Nobody here cares what os they use in their office pc. I don’t see anyone here switching to linux on their personal pc other than the IT students who are forced to install kali linux. And most of them are running linux on virtualbox on windows.
Steam deck is not even officially sold here and imported ones that are sold cost 950$ for the 512 gb variant. So it is a ultra niche item here.
People here buy desktops only for gaming/content creation, which means most households here doesn’t need/require a desktop. And these people always prefer mac or windows.
Also gaming scene here is dominated by mobile games (because gaming pcs and consoles are too expensive and we have the cheapest internet and phone prices) As for pc games it is dominated by valorant, Minecraft and gtav (fivem rp).
That’s lot of assumptions and a lot of missing the point.
The point being game/app support matter a lot and you don’t get them because office pc uses linux for web browsing. If these developers follow the 4% market share they will disappointed by the actual usage. Windows doesnt have this problem eventhough it is fading away from enterprise.