I just got into Beijing a few days ago. One of the big differences from Shanghai is that there are fewer scooters and motorcycles around. In Shanghai, these bikes had free reign over the sidewalk.
The one thing that’s still true in Beijing is that as a pedestrian, you are at the bottom of the food chain. If you step into a cross walk, don’t expect cars to yield to you even if you have a green crossing sign. Often you’ll want to cross and have to wait for a whole string of cars to go by you.
The good news is that j-walking is at a higher level of sophistication here. When cars are making their left turns, people will walk diagonal across the intersection. This is a nice time saver if you need to cross in both directions!