Is it really, though? I mean, I know how annoying 'busywork' can be. How meetings can feel like a waste of time. And for some jobs, that 80% is probably a grave underestimation.
That said, work is never just about doing what you're best at. Collaboration can be time consuming tediousness but at the end of the day, there's topics that need to be discussed and decisions that need to be made as a team. It might be unstructured but it is still collaboration.