With well-structured experimental findings and a rigorous theoretical framework developed for solid-state problems, we could relate the FOs concept with the response of delocalized electron density in the presence of a disturbing agent (e.g., point charge). Moreover, we have noted that the FOs are somehow related to the mesomeric effect , which is generally well-known in chemistry. Understanding this connection would allow to adapt the chemical knowledge from the field of surface interactions to classical chemical phenomena like the mesomeric effect. For more details on this, please refer to section 4 of this review. Understanding the correct nomenclature could eliminate the necessity of repeatedly rediscovering fundamental concepts. Another key question we address is whether analytical models based on the physics of electron gas systems can be directly applied or adapted to predict surface chemistry.