Talk to anyone who's a bit more advanced in technology than the average American, and you'll notice that they think something to the effect of "Ubuntu's the only Linux".
Mention Slackware, and they're stumped. I had one guy say "Gesundheit" when I mentioned Gentoo.
So, it's fair to Linux saying Ubuntu's got it over Windows and Mac, and yet unfair to Linux in saying only Ubuntu has these.
Edit: Well, in ways of access, Ubuntu's method is easiest (app store like), but anyone can make a GUI frontend for a distro's package manager.
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