vast majority of students at most universities [live in private] rental accommodation in the community
That's the other confusing part, how can there be directives about when students return when they have private contracts for their residences.
So the university can say that they may not come into university buildings without fulfilling condition x or y re tests
DD has had maybe 3 hours total of in person tuition this term and she never needs to go to library; she just about barely gets outside her dorm building once a day, most days. The study pods within the building make more sense to use than treking to library. Must be same for those in private accommodation; they very rarely have reason to go to campus buildings.