For the first time ever I joined a voice call while playing a game (among us) and as soon as I said something everyone immediately started going "Is that a female??" "You're a female??" "There are females here??" I get that it was supposed to be a joke but fuck it felt so alienating to be bombarded with that in my first attempt at gaming socially
Then there's tabletop RPGs, which are traditionally the exclusive domain of male nerds, but in my experience (and my sample size is decent but not huge) are actually much closer to an even split.