How common is (selective) mutism in women? Does the majority experience it or not?

Asking because I don’t personally experience it and because I’m undiagnosed I tend to find every little reason I might not be autistic because imposter syndrome.

I definitely have times where I don’t want to talk, but it’s not like I lose the ability to form words and sentences. How many of you experience this or another form that I might not be familiar with?