This is perhaps too general a question to answer - you’re talking about dozens of schools, many with very different levels of politicization, recent histories with Jewish communities and activism, etc., plus you’re probably just going to get different anecdotes, plus the old saying “two Jews, three opinions” :). Even pre-10/7 you would have gotten very different answers at Penn v Dartmouth, Swarthmore v Hamilton, etc. All of these campuses have some Jewish life, but it differs in the details quite a bit.
I think if you have specific questions about specific campuses, you could direct that way?