This is of course my point of view, but I have the impression that the bottom zone is used by Steinberg for what you do not need
This sometimes results in a comic appearance, the chord panel becomes gigantic, the sampler editor could take 1/4 of the space in a normal window, etc.
In addition, by switching between the bottom zone tabs you have to change its height because the different tabs require a different size for the comfort of work
In my opinion again, Steinberg is heading to a dead end, inserting functionality not in the right place
Please, Steiberg, do not be revolutionary where it is not needed.
All you need to do is make the windows always on top (key editor, sampler editor, chord window - if it is created).
Give us the option of choosing who likes to work in the lower zone - please. Who prefers traditional windows - chooses a different option.
Let it be configurable by the user.