At the same time, I know many young boys ( as well as obviously girls) who didn't have the autism picked up because they didn't fit these stereotypes.
I also found the stereotypes unhelpful. My DS finally got a diagnosis a year ago age 14 after a decade of pursuing it.
He's been under CAMHS since age 5 due to behavioural issues but there was a huge barrier there because his presentation is atypical unless you spend a lot of time with him which no clinician ever has. Things only changed when the secondary school support workers were able to see what I saw and backed me up.
By atypical I mean that he didn't do things like line up toys - he never played with toys full stop and for the 10 -12 years of his life pretty much trashed and broke anything in his line of sight.
Interestingly, and I'm not sure exactly why this is, his ASD has become more apparent as he's got older. If I had to guess I'd say puberty has reduced his hyperactive behaviour and aggression (which was previously diagnosed as ADHD/ODD) which is odd because you sort of expect it to be the other way around with teens.