Was she followed around by bodyguards?
Discreetly, I assume. Harvard actually has a staff of people who are very experienced in handling the children of folks like this, and their security requirements. Harvard is very good at keeping the details to themselves.
There are many celebrity children, children of “important” people there. Most other students pretty much ignore them, and the smarter “important” offspring do NOT draw attention to themselves. Xi’s daughter, as far as I know, fell into that category. My older son saw her a couple of times, but she really didn’t make a ripple.
That being said, malia obama did not belong to that group. My younger son would see her around campus (he graduated, I think in her freshman year), and he was unimpressed.