Excellent analysis, thank you. I like your suggestion.
At first I clicked hamburger and expected everything to be there. After pouring through that menu, I stabbed at my photo and found it was another menu. And then I saw only three tabs: bell, bookmark, mail. It was probably only by accidental hover of my name on the left two weeks later that I realized it was a fourth tab.
Removing the name or making it not an interaction element, and pushing the person icon to the right with the other tabs, would make more visual sense.