If you mean Joker 2 at a 200mill budget, I've no idea. Not seen it, but I bet it does have lots of backdrop CG for location at the very least, if not entire CG dream sequences or whatever. But seems to me that Todd Phillips just RAN DC DRY because he was being almost maliciously bad with the budget. He knew he had a blank check, had agreements with folks no longer there perhaps, so he had no oversight and just went nuts.
Can't wait to read the "tell all" production diary of this film. Sure to be far better than the movie itself.