Between the Material You design and move to break apart the Chrome browser from ChromeOS, now more than ever, ChromeOS is Linux with Google's desktop environment.
Maybe I'm mistaken on this, but I'm fairly certain the screenshot they describe as "Unity" is just a heavily themed GNOME. Also, I've never seen Xfce stylized as "XFCe." I realize that's not the point of the article, but just something that stood out to me.