I don’t understand why Google didn’t just made Android closed source. They would’ve made custom roms impossible and therefore more able to control and spy on it’s users. Why did Google made Android open source, while Microsoft’s Windows is still closed source to this day?
Well, Windows isn’t that popular in the computer scene. Linux is by far more popular for servers, IoT devices (payment terminals, heartrate monitors…) and critical systems. But Windows has an edge in the PC scene. But to be honest a Apple Mac is also in the formfactor PC. These charts are always way of, just because their definition and monitoring techniques are not trustworthy.
The problem with Linux: it is opensource and free, and everyone can rebrand it. But at the same time everyone wants to make a euro out of it. There are a lot of companies that misuse its license by closing the source.