I'm working with a FC that has data, of sorts, stored in the symbology.
What I mean is: there is UNIT information in the symbology as labels, yet that UNIT information doesn't exist in a field in the attribute table of the FC anywhere.

I want to copy or export the information from the symbology to a table -- to be used as a lookup table that I'll use to add/populate a UNIT field in the FC.
I've looked in the docs and poked around in ArcGIS Pro. As far as I can tell, there isn't an OOTB tool to copy or export the information from the symbology classes to a table.
Could Esri consider adding that functionality to ArcGIS Pro?
Or, I suppose the holy grail would be:
Idea: Convert symbology labels to a field in a feature class