Geo-Node animation fix (Object as a whole)

Hey Blender/Blender community, I'd like to see an easier way to node an object. This way if you have A LOT of different materials, you don't need a super complicated Node system, or manage materials one by one. By selecting an object, and going to the node system, instead of only applying the nodes to a single material, I'd like to see them apply to whole the object or objects if joined (meaning all materials in the selected range) as a whole being. I feel this would speed up large projects using many materials and objects together.