Well... I once wanted to write a short story (or perhaps longer than a short story), where one of the topics is "masculinity".
Or at least in that story, there are the two guy main characters, one of them being more "feminine" (uses makeup and is into fashion and stuff) and the other one is "masculine" (goes to the gym a lot and likes sports and stuff)
And I also wanted to touch on the subject of "toxic masculinity".
I have written some short stories about the "boys don't cry" thing though.
Like one story is about a guy mourning over his father's passing, but he tries to hold back tears and also pretends that he is fine because he doesn't want to be seen as weak.
Some men would perhaps be thinking "Oh, a woman telling men how we should act "
There is a story, I'm currently writing, where the main character is a guy who wears makeup, but the "makeup" part isn't important to the plot.
Would it be like if a male author wrote a book about femininity?
Perhaps a book, where one of them is girly and the other one is more tomboy.
And then the book also touches on "society's expectations on women" or "toxic femininity".
I can imagine that some women would perhaps refuse to read that book.
Even though I have watched some Youtube video essays by men, that touch on subjects like that, and haven't felt offended.
And just to clarify, I know that an author is allowed to write a novel and have the main character be of the opposite gender.
Like the Harry Potter franchise is a popular example of that. Even though there is a kinda related reason behind why she published that book under the name "J.K. Rowling " and not "Joanne Rowling". (but that had more to do with marketing and also the fact that it would attract young male readers.)
There are times though when I have wondered if the male characters in my stories are too obviously written by a woman.