It's an extremely complicated question with a lot of different conclusions from various psychologists. It also changes in perception of the external party if they are male or female (meaning how others perceive the autism vastly changes depending on gender).
Autism is also a catch-all term for an extensive array of various symptoms. Ranging from "classic" autism, or what was once called Aspergers, to the more modern approach of neurodiversity and atypical information processing and interpretation.
Traditionally the classic traits of autism are actually traits seen as admirable in women or at least far more excusable (if the person viewing them is a man). Women, however, tend to be far less forgiving in this aspect -- women are far more likely to pick up on the autism of other women than men are capable of picking it up in women. Men tend to have more passive autistic traits in the overall population - excluding those with autism - however women don't. More men are geniuses, but also retards, while women fall around the rough average with very little deviation (statistically) and that vastly impacts how to gauge autism in women.
Whereas a man will be seen as socially awkward for being extensively shy and maladjusted, women will be seen (by men) as almost more ideal and preferable due to their lack of distraction - this is where the "quirky" label comes from.
If a man is fixated on a specific topic, preference to environment or field then they will be viewed as either a nerd or passionate. Women, however, may be viewed as normal as women do tend to have more specific fixations to environment such as an impulsive need to colour coordinate or arrange items in a specific way. There are also far more reasons in positive given to why women may be socially withdrawn compared to men.
My work involves having to assist in the diagnosis of autism - both men and women; and women are by far much, much, muuuuuch harder to diagnose in the classic forms of autism as depending on upbringing it may literally be learnt values of what a women is expected to behave as versus an actual mental affliction.
In my experience, confirmed cases of women with autism that do not have debilitating symptoms tend to be far closer to other women than men are to their counterparts. With that said, there is a caveat: the overall consensus on what is normalised in female behaviour has so vastly changed in comparison to men that finding what the point of typical is can be extremely difficult. The social experiences of men vs. women also makes it much more difficult. Women have a significantly less difficult time in seeking companionship than men and the ability to form bonds is a root method of assessment in autism.
There is a good working theory that "karens" and women that overall can't understand why the world does not operate their way may actually be a form of autism that isn't entirely understood, however because of certain relief of expectations on leading socialisation it may not have been previously seen as a form of autistic symptoming.
Women are also far more physically centred when it comes to perception of them. If a woman has a nice smile, eyes, overall appearance then it's often unlikely others will see them as autistic even though the behaviours are there. For example, if a man has a room full of collectables they will likely be looked down upon for that autistic trait, however if a woman fills her room with plushies and merchandise of a specific franchise the same won't be applied.
One thing does seem to come across though from my experience - autistic women tend to have more male attachments (friends) than female friends.
It's a minefield, and the studies on the differences between men and women in respect to autism is only just emerging as an actual distinguishable set of traits. Autism is mostly based on male traits. Almost none of the methods of diagnosis are specifically aimed at women as, for a long period of time, it was considered something that only a very tiny percentage of women would have compared to men and not seen as possible for the same per capita rate to apply.
To answer your direct question: We don't know. Autism in women is a very, very fresh field and still isn't entirely conclusive.
