Hardly anyone (present company excepted) knows what's "underneath"

To the vast majority of users, the computer is "the apps"

And a great many people use only a browser, a photo album app and maybe some office apps to handle the WPX flying their way.

That said, even "apps" are becoming "conversations" to an increasing number.

Come on ingve. You can do better than this.

This is pretty cut-and-dried, nowadays.

Linux distros are Linux, often GNU+Linux+etc.. Windows and macOS users are indeed running NT and Mach underneath. The year of the NT kernel was 2001, when most people used it. Android is typically not considered a Linux distribution, which is fair considering the tooling the AOSP includes. Android is considered an OS because it has distinct high-level frameworks for writing and distributing software that is not Linux-conventional.

SteamOS is a Linux distribution. The root is immutable but everything else is present to run ordinary Linux software. If you wanted to be pedantic, you could say the "OS" tag is justified given Valve's work on Linux' Pressure Vessel and Steam Linux Runtime for native/nonnative software distribution. It is an arbitrary label, but not mutually exclusive with being a distro.

> And it will not be the year or Linux on the desktop.

C'mon, at least proofread your own ragebait.