Star Wars: The Rise of Skywalker Was Edited on Set
https://www.starwarsnewsnet.com/2019/06/the-rise-of-skywalker-edited-set.html
”When we did The Force Awakens, we started in May and we finished shooting in October, and we were out [the following] Christmas. For this film, we didn’t start until August, so we weren’t done until February shooting – so we have four months less time, and it’s a very big film. So I convinced J.J. to let me cut [The Rise of Skywalker] on the set. He was like, ‘No, we never do that.’… I had the [director of photography] right there to ask questions. If I needed a shot, or if J.J. decided we needed another shot, we would set up in a corner and get a green screen shot of something. Getting to know the cast and having them be comfortable with me, it was a really great way to understand what they were going through.”
https://www.carseywolf.ucsb.edu/pollock-events/star-trek-2009/ (TRoS @ 24:30)