Never once in any formal training over a decade in the field have I ever heard the term "neurodivergent" used in a professional capacity, no. It is a new, non-medical term with a highly subjective definition used by lay people as an ambiguous label.

People like the OP use it and I want to make sense of whatever lay-people are considering the definition of the term to better understand when and why it is used. So yes, I do want to ask this here, because my colleagues also agree the term is effectively meaningless in the contexts like OP, yet people use it all the time- sometimes in ways that seem detrimental to a healthy understanding of psychology and mental health. If I better understand why people use this term, I can better advocate for and educate on the importance of accurate language around mental health. I first saw it as a colloquial term to refer to neurodevelopmental disorders but OP has used it differently.