Neurodivergent -v- Autistic

I will start by admitting I'm a bit grumpy as my brain is boiling in the heat (south of England heatwave).

Nevertheless, I am getting rather irritated by people talking about neurodiversity (neurodivergence) on threads without mentioning what the neurodivergence is.

I'm having to assume that they are talking about autism as it's an autism forum but it could be something else (see below).

I feel like this umbrella term becoming a substitute for each individual condition.

Does anyone else feel the same or should I take a cool shower?