Last time this was posted it came down to many bots run on Linux. Thus if near 60% of all internet traffic is bots. These numbers show nearly nothing of value when it comes to figure out what humans are using anymore.

Last time this, or something like this, was posted it was because fewer and fewer people are using PCs at home. They just have a smartphone or tablet and that's it.

In that case they're not using windows they're using MacOS or Android.

It’s because of the recent explosion in bot traffic. Bots are largely run on Linux, using basic desktop user agents. So when studies like this look at desktop traffic, they see a disproportionately high number of Linux desktop users. But in reality, the vast majority of those “users” are actually just bad bots and scrapers who aren’t properly flagging themselves as bots (because they know sites will block them for scraping content).

this is from statcounter.
I mean - I like the numbers, but I doubt their validity:
https://gs.statcounter.com/os-market-share/desktop/worldwide/#monthly-200901-202608

I made it up