This is a really complex area and I wish I could verbally chat about this rather than clumsily post on a forum!
We must be careful imo about linking autism "traits" (not sure why I don't like that word) to sex or stereotyping them.
Women and girls have been woefully under diagnosed wrt asd and certainly many more of them seem to be able to "cope" or mask in mainstream schools. Sen schools (I teach in one) with children with asd are full of boys. (I mention schools as that's how many children get referrals.)
At the same time I see many boys who also are capable of "masking;" in fact out of a boy and a girl who were twins, the boy was more capable than the girl, who suffered hugely from social anxiety.
I also know of men who were late diagnosed due to their ability to attempt to fit in.
I do feels it's better to say "these are the types of things we may see in a child or adult with autism." And it may be that more girls than boys are able to mask, but over all to "gender" the behaviour is still going to do a disservice to boys or girls who do the opposite of the stereotype.
My niece is undiagnosed as she's in a country where, due to her academic ability, it was better to stay in mainstream and a diagnosis would have put her in sen, and yet she's unable to "mask." She struggles in social situations, appropriate boundaries and conversations. Social problem solving.
She does "fit in" with female gender stereotypes though. She is calm and quiet and likes flowery dresses, long hair etc. If she didn't, I think she'd stand out even more.
There's an observation I've made over the years regarding the boys we have who are diagnosed autistic, especially those who come in to us from mainstream around year 3,4,5. They often also have adhd and can have a lot of difficulty managing their feelings, angry outbursts and lots of issues with concentration. We do also have girls diagnosed with both but again, it seems to be more common with boys.
So I think boys often get more referrals in primary due to additional issues that make the way our learning environments are set up very hard to access (OTs and SALT tell me they work with far more boys than girls.)
One boy I taught who later wanted to be a girl was extremely socially able and enjoyed playing with the girls in his class (who weren't autistic, moderate learning difficulties.) he was only diagnosed with autism after the Tavistock saw him. If he was an actual girl he wouldn't have ever be diagnosed till much later and would likely have been described as "masked really well."
Definitely widening the awareness of what types of difficulties a child or adult with autism can have is really important, especially for our girls. A colleague's daughter who's taught in our school for a very long time has recently been diagnosed with autism, after years of difficulties and anorexia. My colleague had a set idea about autism and was surprised. (But even Tony Attwood didn't recognise autism in his son.)