That's 30% among all devices, the percentage among desktops/laptops is much higher. You are living in a bubble. I don't know how large it is, but especially in

That's 30% among all devices, the percentage among desktops/laptops is much higher. You are living in a bubble. I don't know how large it is, but especially in non-web, non-multimedia offices, Windows is the default. Most serious CAD software is Windows-only, some outliers also support macOS. That old ugly accounting software the company uses only runs on Windows and nobody bats an eye.