There could be other reasons too.

I think that female brains tend to have slightly more long range connections and are slightly more integrated. I think they have a more effective bridge (corpus callosum) between the hemispheres too.

Since people with autism tend to have shorter and more local connections ( leading to our lack of sensory integration and specialisation in detail) then females may be more resistant to expressing autism.

Certainly autism tends to be diagnosed later in females, often just before the teenage years when the girls show social anxiety or eating disorders, which are sometimes connected to autism in girls.

There is a theory by Simon Baron Cohen along these lines. Autism is the "extreme male brain"

https://pubmed.ncbi.nlm.nih.gov/12039606/

I think this theory is crude and oversimplifying, but there is something there.