Funny how the world comes full circle... I hope Microsoft learns from itself and its users too. (BTW, think ChromeOS is ridiculous for many reasons. Merge with Android, rinse, done.)
But evidently Google wanted the Chrome OS to be more like Microsoft Windows and Apple'sMac OS X. That's smart, given how many people are familiar with those operating systems and how weird Chrome OS can feel when you first try it.
Overall, the user interface is probably more familiar to average users, but I'm not a fan of the new window modes for the most part. I'm already a maximum-screen kind of guy for the most part, unless I'm using a really big monitor.
So arguably, the rising star of full-screen apps means that Google is anchoring itself into the past with Chrome OS. Even though I'm a full-screen fan, though, it's probably smartest for Google to adapt to prevailing customs in this case.