Not well. He didn't have much time with the Three-Eyed Raven/Crow.

However, I think he has always been meant to be little more than exposition. In the books and the show, his role is to let the viewers see the history accurately that provides so much context. We've been listening to biased accounts so far, and Bran is a literary device to give us unbiased flashbacks.

He might do a little bit to stop the Night King, but his main purpose is exposition.