English has the peculiarity of having two variants of the same word: “gender” and “genre” with slightly different meanings.

You could lean on it and go with genre. But just changing the word is unlikely to help much, the concept itself is deeply associated with genitalia in English culture, you’d still need to explain it.

Nothing will change in that sense.

There is already support for retroachievents, if you don’t see it you’re most likely on the stable branch.

Retroachievents only work on the dev builds, which are available on flatpak-beta. The readme has some instructions in case you need them.