I discovered that doing group projects in college. I always ended up being the one who was supposed to receive everyone’s contributions and type up the final paper. Quickly discovered that some never did anything, and most of the others turned in such shoddy “work” that I would usually end up having to write the entire paper myself at the last minute. Needless to say, I quit allowing myself to be talked into taking on that duty. It was always so tough to stand up there in front of the class, presenting “our” paper, and to see the slugs in the group receive the same accolades that maybe only a couple of us deserved. I learned a lot about people and socialism/communism from those experiences.
And my work life after that only confirmed those lessons.
My kids were always doing group projects and hated them for the same reason. I told them it is a good learning experience for working in the real world. Except in most situations in the real world your boss or client will figure out that you are doing most of the work - and you’ll get recognized for it.
I did a few group projects in school, but not too many. Except for lab courses where we always had at least one partner.