Bump does not use colour information.
Neither does displacement.
Nor does the transparency channel use colour information.

Diffuse_Color does.
So does alternate_diffuse.

I know that if I plug a colourMap into a bump channel what is being used is not the colour information.

From what I'm reading now is that since I do use the colour information in specular and reflection and all those - anywhere, really, where I see colour in an existing shader, those colours will need to be anti-gammaed before processing.

It boils down to intent.

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks