How convenient for a web company to present a graph with no units or measure of "user experience" and, surprise, the web is almost as good as the desktop now. How... made up and fake.

How one earth did they measure "user experience"? What is responsible for the up and down fluctuations (note, on a logarithmic scale) in the relatively flat line for "native" user experience?

Finally, of course Google's own Chrome is the best.