Comment by xpe

This was also my first impression. But it seems to me the changes are mostly about swapping what panels dock where (left or right) and maybe some additions/tweaks around the AI panels. On macOS these are still the same:

    ⌘B : toggle the left dock
    ⌘R : toggle the right dock

If you opt-in to the new layout, the panels that used to sit in the left dock are now in the right dock. I will give it a try even for classic coding. One can change what panels get docked where from the settings window.