Agree with this, although I'm sure there is some variance from school to school due to different infection rates in communities.
We were just back at DD's university a couple of weeks ago. Her school is the University of Central Florida, which is the largest public university in the US with close to 70,000 students in normal times. Even with Covid, there are a lot of students on campus, and they move about whether or not they are in classes.
UCF has a required mask policy any time you are on campus and outside of your dorm room. We saw a very few violations, and most of those were a lone student in an open area, nowhere near anyone else. Students walk out of their way to avoid close contact and mask compliance was very good. R
Even in more congested areas like the student union and the two mall-like centers, there was plenty of separation and the Knights were "Armored Up."