Makes sense, thank you.

Autism sounds more similar to, perhaps, multiple sclerosis, which I know a bit more about due to family members with it, in that there are many symptoms, and not everyone has the same ones, or the same severity - so a linear spectrum is also not a helpful analogy.

Yes that’s exactly it. It’s similar to MS but instead of just symptoms I would say traits would be better when talking about autism because some time autistic traits can be very positive instead of a symptom or a pathology. But yes not autistic person has the same traits or to the same degree.