As controversial as this statement is, in my personal experience (PLEASE READ THAT DISCLAIMER!) I found this to be 100% true! Graduated from a very expensive/prestigious undergrad school and took the equivalent of nursing pre-reqs with med school students who all had high hopes of getting into Ivy League med schools. I was pre-med at the time and those classes were KILLER!! I've never seen so much weeding out in my life!
Cut to a couple years after getting my degree, and after a hiatus overseas, went to my local community college and it was almost the complete opposite experience. The teachers were way more lenient, material wasn't 100% easy but not nearly as difficult/ challenging as my undergrad and the cheating was a pandemic!! I will say that when I was a premed, because of the negative reputations of CCs (how easy they are and cheating), I was advised (by med school reps) to steer clear from taking any pre-med classes at CCs. I was advised this because Med schools weigh classes taken at 4 year universities higher than those taken at a CC, because they want to know you were as challenged academically as possible. When I made the switch to nursing I expected nursing school to have the same mentality and was honestly disappointed when I found out that an A is an A no mater where you took the class, because I knew I didn't have to work as hard as I did in undergrad to get good grades (had wayyy ewer sleepless study sessions) and way too many people cheated their way to the ADN program.
This isn't to discredit people who have gone to CC or decide to go there for financial reasons, this is just my personal experience as well as my opinion. It could just be my local CC sucks but I got into my first choice MSN program so I don't care anymore! I'm very fortunate that I was extremely challenged and learned many excellent skills in my undergrad.