The pulling movement pattern should be solid: pull the shoulder blades (“scaps”) together, following through with the elbows. In the row, you drive with the legs and finish with the elbows. In the hang power clean, you drive with the legs and finish with the elbows (first up then forward). In the Pendlay row, you simply hold the position and finish with the elbows.
Better scap function lead to better posture and more efficient movement patterns overall!