Maybe consider a different design like this keyboard: https://www.amazon.com/CORSAIR-PLATINUM-Mechanical-Gaming-Ke...

The roller in the top right is mapped by default to the volume which is very convenient.

I think the rotary knob is cool, despite not having a use for it myself at the moment (I could probably think of one). Is it possible to just reduce the height? Maybe make the knob interchangeable?