Answer:
Gender identity is often limited in fantasy genres.
Step-by-step explanation:
I would suggest reading and watching popular fantasy shows and books, such as Harry Potter and Game of Thrones, to use the examples in them on how gender is written. The role of Hermione is often skimmed over; she's very strong and knowledgeable, and often Harry and Ron rely on her, but she doesn't get nearly as much recognition from them as she should. Some good points to bring up:
how sexism is handled in the book or series (was it written in a sexist way? do the characters have sexist ideals? how do the heroines reflect this viewpoint?)
the handling of trans characters, if any (J.K Rowling later turned out to be a transphobic person-- is there evidence of this in Harry Potter? are meaner female characters often described as manly? same with weak male characters being effeminate)
the writer's experience with sexism
I hope this helped!