It’s hard to get the structure tree to scroll up when dragging and element up. The trigger spot seems to be too small and not horizontally contigous. I don’t know, sometimes an area triggers and if I move the mouse and go back, the same area stops trigger.
Scrolling down while dragging an element is not all that great either, but better. With it, the trigger zone is so small, it is hard to control the scroll speed where you want it is all. It’s too sensitive.
We haven’t changed the structure panel scroll behavior since “forever”, and I don’t notice any difference compared to prior versions. Do you? If so, what exactly?