I actually had pretty much the opposite experience - though I don’t doubt yours nor anyone else’s, whatsoever! - I grew up gaming, with my (hetero) parents running a guild across multiple MMOs. They introduced me as their daughter, and the guild was always pretty progressive, with a great deal of diversity.
I didn’t actually really encounter sexism in games until I was much older - around 16ish (mind, I played MMOs with the 'rents from about age 8) - and then, it was mostly flirtatious, because I usually voice-chatted, and, as many people have told me, I have “a voice like a Disney princess”
In the last 8 years, I have kinda just stopped caring. I still sometimes correct people online, if they I assume I’m male, but I mostly just ignore it, if for nothing other than to hear their shock if/when we jump on Discord. “Wait, you’re actually a chick?!”
me: “last I checked, yep.”