For practical courses (nursing, medicine), there has been a mix of remote and in person teaching since the start of the academic year at my university, and that has continued throughout. Other students have had to be taught entirely remotely in order to increase the amount of space available for these courses, and there has been some resentment around that, both from students and lecturers.
For lab-based research (PhD) students, which I'm more familiar with, at our institute first year students were all started off with a literature review type project for the autumn term, remotely supervised, plus an intensive series of hands on remote workshops to level up their base research skills (data management, stats, project management, good research practice, etc). They began coming in for lab work in January. The 2nd year & up students have been in the labs since summer 2020 when we were allowed to re-open the building for research. We operate a shift system for reduced occupancy, and people like myself who are purely computational research can only go in for special reasons to keep the shared space occupancy low. The students seem to be ok with this set up.