Just to tie this back to Arday, if he was known to use common workplaces accommodations for ASD (e.g. noise reduction, lighting adjustments, sensory tools, hybrid work) that would provide weak evidence for the inference that the diagnosis was part of the man rather than the myth built up around him.
Well, it would sure make it more plausible, but there are lots of reasons for some of those, so it's hard to be sure.
I've had lots of coworkers and friends use headphones with some form of noise reduction, and I don't think most were autistic. And generally they're all the rage these days. One good reason is that big office rooms can get really noisy. I actually bought a DB meter off amazon and measured literally 92dB when three groups were trying to talk over each other. I sent a photo of it to the small company's owners and to HR with a link to the law that said at that level they have to buy us hearing protection. Same applies on the bus, train, plane, etc. Another is that open can headphones also broadcast the sound AROUND you. I've had colleagues who used those and trust me, the whole room could hear their music. So it's just the decent thing to do to use the kind that don't effectively act as speakers. And if you don't, I'll refer you to the previous reason for why you'd want some sound insulation yourself.
Lights are also not just an autistic thing. Many people are just plain old photophobic. Or epileptic. As I was saying, CRT and fluorescent light tubes can turn into a strobe light. At very low strobe frequencies they'd just make it impossible to concentrate for most people. Just because it's distracting AF.
Etc.
One thing that makes me wonder though, is that a common (but not universal) symptom of autism is seriously disliking big crowds because they're chaotic. In my case, it can actually make my muscles tense up for fight or flight (and then my brain goes, "I'm not a bird, I don't do flight" which is even scarier as a reaction to a crowd,) and I'm only Asperger's. Professor... is probably not a job most autistic people would go for. Like, have you seen a college hallway when the bell rings and have to go somewhere else? Yeah, you did. A former non-verbal autistic person, probably even more so. Their biggest speaking problem, when/if they start to overcome it at all, is around strangers.
Also the most common symptom of autism and ADD is a very narrow focus of interest, and going super-focused when doing it. (Which can change at various points, granted.) Like, someone might be obsessive about all kinds of trains ever, but not give a flip about bus models. It's somewhat uncommon for someone to just suddenly go from philosophy to teaching sociology, but then it's not impossible. I mean, I switched myself from physics to history, but still not to a people job. Autistic people are inherently bad with people.
But, as I was saying, people have different symptoms, so it's not a guarantee.