Valve: Here Linux, you finally have lots of video games, no silly BS, they just work.
Ubuntu: Oh shit Linux might get popular, quick, we better break the video games!
Valve: ...
Canonical makes no money supporting Linux gaming. Their customers, their actual paying customers, want servers. So that's what Canonical is going to focus on.
Ubuntu, too, has made some rash decisions at times. They cling to their sluggish developer-unfriendly Unity UI, randomly kicked out ffmpeg from 14.04 for political reasons, among other things. These kinds of rash decisions cost them every single time.
At that time RedHat was the king of Linux desktop, and “the year of Linux desktop” was predicted multiple times.
But in retrospective, I think that RedHat did a good move. Where is Mandriva/Mandrake Linux today? Even SuSe which is doing fine, didn’t have the growth of RedHat.
It was sad for users hoping for the year of Linux desktop that never materialized; but a good business decision for RedHat.
Android is the Linux phone. 3 billion people are running a Linux kernel in their pocket right now.
It did happen, just that it didn't unfold in the way that RedHat users originally imagined.
The Linux kernel isn't exposed to app developers, only OEMs writing drivers.
Google could switch it for something else tomorrow and beyond Google itself and the driver writers, no else would notice.
Same applies to ChromeOS.
As for Apple platforms, with each release POSIX APIs become less relevant with Objective-C/Swift/C++ replacements for them.
So it is pretty much a pyrrhic victory.
Ubuntu is pretty far from that. I still have to do quite a bit of command line fuss to setup and maintain my Ubuntu system. Fine for me as a dev, but not fine for mass adoption.
That's the main reason "Amazon Linux" exists.
Red Hat is a lot more than Linux, but that revenue disparity is huge, and I bet they are licensing out RHEL to everybody who buys other stuff from them.