At the risk of stating the obvious, do make sure they pack stuff in bags/crates that they can carry up a flight of stairs without help if at all possible. Even if that means twice as many trips.
DD was thrown a curve ball on arrival - had a couple of days in a temporary room as someone in the household was awaiting a covid test result and they didn't want to let anyone else move in until the result was known. All fine in the end, but DD did have to shift all her stuff up from the ground floor to the fourth floor without help. We were very glad that we went for the small, manageable boxes, not the massive trunk that is lurking in our garage!
Hopefully that won't happen to anyone else, but I've seen another university asking students to be prepared for rapid moves and who knows how the rest of this term is going to pan out.