I'm thinking about how so many of my friends identity as neurodivergent. It does indeed seem to just work out that way.
I'm also thinking about a fairly close friend I've shared a lot of autism stories with. Based on what I know about him, I considered that he might quite possibly have autism. He actually brought it up a couple of times and asked me if I thought he did. Even then, with him being receptive, the strongest statement I felt comfortable making was that I'm not an expert, and I can't help him find a label for himself — adding immediately that whatever the case is, I love the way he thinks and interacts with the world.
These days, he does identify as autistic, but I did my best to divorce myself from his identity process, even though we speak pretty much everyday.
I think I was walking a line, being supportive while not imposing my own thinking on him. (Because what do I know?) At least in this case, that approach seemed to work out pretty well.