Sorry it’s google translation! I hope this will be understandable …
First of all THANK YOU for the work you are doing and for the keyboard shortcuts for the buttons that have disappeared.
The first question to ask yourself, you want a Zen interface with a few buttons and little used functions hidden at the bottom of the dark menu or just accessible with keyboard shortcuts, or then a consistent interface with the group of coherent buttons?
I think for beginners, it is easy to get lost if the functions are not easily accessible, I see it as a blender in training. By cons professionals will look for keyboard shortcuts. Then when you work with a pro surface without a keyboard if the functions are not accessible in the interface, it becomes hell. I use Krita and Blender 3D for my work every day.