My daughter is a minimalist. She had her own single room in a suite, but very little belonged to her. For the summer storage, everything fit in 3 rubbermaid containers and she stored those for the summer at a friend’s house (friend owned the house and would be living there (with other teammates) over the summer and for the next year. The next summer and for junior/senior years, daughter was living in a house so moved her stuff in (again the 3 bins and maybe a little more) in May.
My other daughter went to school about 2 hours from her grandmother’s house, so we drove up with 6 duffel bags. A car full of stuff came back in May but only 2-3 bags went back for sophomore year. Less the next year and by the time she graduated, very little was left.