Correct me if I’m wrong but from my understanding, an Object has two systems, one being called the Object Coordinate System which is independent to the object and the other being the Position of Vertices which remembers the position of all vertices in all 3 axes.
When a Linked Duplicate is formed, if the positions of any vertices is moved (done in Edit Mode), then the changes apply to the Original Object as they share the same datablock. However, if the position / scale / orientation of any of the two objects is changed, it does not affect the other block as it used the Object Coordinate System.
I have a question regarding this. When an object is changed using the Object Coordination System, the vertices of the object do move in 3-D space. However, it doesn’t affect the linked object. In what relation does the linked object get affected. Is it only when changes are made in Edit Mode or is it related to the Object Origin.
