I don't know whether you didn't read the article or are just one of these simpletons incapable of holding an opinion more nuanced that "good or evil", but they are suing the owners.

So in the old days, he would've had a paper map and would have driven off the bridge the same way.

Paper maps don't talk to you and tell you which way to go, do they?

I seriously can't decide whether you're some Google shill or you've just given your brain the day off.

Even entertaining the idea it being anything else is ridiculous.

It's their own OS running on their own custom handheld. Treating it separately from other linux machines might be odd, but calling it "ridiculous" is being childish.

Yes, I know how Linux works.

The poster above asked for a reason why steamOS might be considered separately to other sisters, and I gave them a possible one.

Why wouldn't an Arch branch not be Linux?

Because it's Valve's own OS. They might consider being first-party sufficient reason to not to lump it in with its third-party cousins.