These are experiments for improving and simplifying the “staff experience”, and our team greatly appreciates hearing all the ways on how you admins use the filters and sidebar. That said, our main goal is to make things simpler for newer “staff” users, and yet also keeping things versatile as they have always been.
We’ve had some internal feedback as well that this may be quite a 
cheese move!
Please continue sharing your use cases so we can learn more.