tbh, sometimes irl it's j a preference for which role/body part you like/feel most pleasure with since everyone's different. but with manhwas/mangas, etc. it's almost always aligned with some misogynistic views since there are still many straight authors in this genre that don't actually understand queer dynamics, so they use straight dynamics. to do that, the bottom will always be the "woman" in the relationship
hell, i know an author who said her mc was straight & him masturbating with a friend in high school was j "locker room behaviour"

I hate it when they are so averse to switching, like it seems so toxic? You don't "see yourself as a man" bottoming so you will always wanna top then what about your partner? Especially if they show interest in switching roles.
This type of behavior is so straight-coded, to see one of the parter as "the woman" in the relationship.
It left such a poor tase in my mouth I couldn't even enjoy the breeding