With new UI, my workflow improved dramatically, however...
The current navigation across new UI panels is broken. From my perspective, where you "click-to start playback" that should be a new center of the project on Stop. No matter which view panel you switch to.
When editing, I find myself constantly scrolling different views just to find a spot I was a second ago. It gets very (very!) frustrating, especially when doing fine things. It takes a lot of (human) memory & double checking (cross referencing). This must be changed.
And second related issue is broken Space Bar function. While it almost works in Piano Roll and Audio edit, it's not stable and would constantly lose focus (start position).

The obvious elephant in the room is lack of proper timeline and start position marker that will define new project center in all views. I tried to stress the need for it for a long time. Some might argue that it belongs in a "wish" section. And I did that, but unfortunately there is no commitment from PGM. Therefore I am asking to fix these two items that are not working properly currently.

To sum up:

1) Regardless of the view in which you clicked at specific location to start playback > That should be new screen "center" of all views, You should not scroll to find same position when switching views.

2) Space Bar function should remember "Click-to-start-playback" location throughout all views and not lose that focus if you for example switch to another monitor or plugin UI and then return to BIAB main UI. Pressing Space Bar should center all horizontal views to that position. (Return to that position in all views)

P.S. Another user posted slightly different set of consistency issues recently. Above are the issues that affect my workflow the most.