There’s an idea in business called the “80-20 Rule,” that in any given company 80 percent of the value is created by 20 percent of the people. It’s more of a rule of thumb, but it’s held up in any company I’ve worked for: a few people do a ton of work; everyone else does what they’re told.
This flies in the face of the typical classroom group project, in which everyone does their “fair share.”
There is no fair share outside of the well-intentioned classroom walls. The people who do more than their fair share get promoted, make more money, and are generally happier than the people waiting to be told what to do.
I think you have a problem if you’re not finding yourself doing more than your fair share of the work, frustrating as it may be.