ADHD Radar

Has anyone else noticed that their ADHD person reacts strangely to other ADHD'ers?

I've noticed a pattern where my H and child are both very hostile amd contemptuous of certain people they meet, and a ittle further down the line, these people are usually the ones with some neurodiversity too.

I wonder if those people somehow threaten them? Or if they're worried their cover will be blown, or if its dysregulated emotion because they feel destabilised around others like them? Thoughts?