High levels of raw intelligence can mask emotional stuff that I suspect makes a lot of the high functioning people not really that high functioning, they are just able to compensate a bit more and be less outwardly effected to their peer group.
Consider, as a parallel, the dirty looks and snide remarks someone with cardiac issues or some other invisible disability get for using a handicapped parking space when they “don’t look handicapped”.
You meant to write "faking it" here, right?
But how was the "former situation much worse"?
Surely lumping aspergers into the same general name of "autism" (like is the case now), makes it even more likely to be accused of being a fake when saying you have autism, as you wouldn't fit the stereotype of the high support needs person they have in mind (whereas people already understood that someone with asperger will not look "outwardly effected" like that).
Any list of "summary advice" can never ably cover that range. Effective advice for a formerly-and-sometimes-still known-as Asperger Syndrome person is indeed going to be hugely different than effective advice for a non-verbal non-independent person.
As the above paragraph implies, the world can barely even agree on names for the most basic sub-categories of autism. We've a long way to go.
Also it bears mentioning that people with milder forms of the condition have their own unique crosses to bear, e.g. imposter syndrome, having people treat you as a fraud by default "because you seem normal", and other fairly significant lifetime burdens.