I use Glaobal Elements quite often. I've found that there is a rather significant risk for users to unitentionally delete elements that are the "mother" for Global Elements. In this elvent all use of the element is allso deleted.
Suggestion:
If the "mother"-element vas iconized the risk could be reduced a bit.
Allso: If a "mother"-element is deleted and restored from "Deleted Elements", the global elements are not restored.
Suggestion:
Promt user if restoration allso should include Global Element setting if the element has been "mother"-element in Global use.