My favorite example, beyond the obvious ones like lord/lady, waiter/waitress, steward/stewardess, is housekeeper, which is now the more acceptable term for a maid, when maid, of course, just means "woman" and keeper is masculine, would be keepster or keepess but (to my knowledge) neither were used historically because, well, keeping wasn't something women got to do!
Likewise, waitress has fallen out of favor for host or server, which are also both gendered terms. (hostess or serving girl, respectively. Servant is also gendered, maidservant and servantess were used)
There's been a concerted push with a lot of these to phase out the feminine variants of these words and just treat the masculine variants as neutral, or find neutral alternatives like fireman -> firefighter (even though fighter is also gendered) because the feminine variants are seen as inherently lesser, which, yeah that's how women are seen.
There is a line you have to draw somewhere of "okay let's just treat this and below as gender neutral because, frankly, most words that just mean "person" mean "man" historically because women weren't (and still largely aren't) considered people, and otherwise we're going to shred the whole English language" and I get that.
BUT. I think a lot of folks draw that line at the start and insist that man/guy/dude/bro can be gender-neutral which is obvious stupid. And I think it's always worth having this investigation and questioning how we speak, it shapes how we think about worlds and people real and fictional.
Okay one last silly aside about barista, which is supposed to be gender-neutral from Italian but men got weird about it and then invented baristo so now -ista is kinda feminine? Typically it's just borrowed into English to sound Foreign (Sandinistas leading to the exonym Corbynistas)