Are you kidding? Pycharm's pychecker is very incomplete. My whole team moved away from pychram due to the shitty typehint support which barely moved forward. (5+ year old bug, inconsistent behavior across the different features in pycharm indicating to me a fragile mess of heuristics behind the curtains)

I agree that most of the functionality on top of the type checker/engine is better in pycharm though. But a correct implementation is more important