https://apnews.com/article/harvard-free-tuition-200k-degree-0b1b462a3dae2317166080cd5f772d4c
Having gone through the financial aid process at another similar school, I doubt it is that simple, and how they cover just tuition vs other costs (living, where many schools require you to stay in dorm your first year), and if they are using government money to help cover that.
I think we have both the best overall college education system in the world, but it is also the bloatiest and worst run as well, of which government has done a great job of colluding with them through the student load program on the backs of millions.