I would imagine most societies would look sort of like Germany or Japan, but the real question is which widespread social norms are directly or indirectly caused by endemic and widespread Neurotypical Disorder, as well as what those social norms would be replaced by
For example, I would expect the attached poster to not exist for various obvious reasons. But how do you think an autistic society would handle the indication of listening/attentiveness?
Ads would either be far less prevalent or change noticeable.
There would also be far stricter regulations regarding lights and noise.
There would be a narrative trope in media of awkward characters who derail communication due to their tendency to force double meanings in conversations.