Raycast linking for materials

Right now, there only exists a simple checkbox toggle for raycast visibility on each object (for materials only, not apparently geometry nodes).

Recently, Blender got "light linking", which is a feature that lets you put objects or collections in a special group/collection to either be included or excluded for a light.

That same principle could be applied for "raycast linking" as well, so one could put objects or collections in a special group/collection to either be included or excluded for a material.