completely agree. i'm just saying it mostly isn't found on the desktop, neither on the iphone and you could argue neither really on android, so not in places where 'normal people' look. these people don't look at the backend so developers are free to pick whatever they want - Linux, Windows, unikernels, it doesn't matter for the end user.
and why is that possible? it's because the backend is decoupled from where the users are.