You're SO RIGHT. There are barely any versatile couple in the bl universe. I think you're right about straight women's relationship perception affecting their stories and you could be on to SMTH about how we like men so we want ONLY men in our porn(?) I also think that since a lot of the manhwas on this website and most of the bls (atleast the ones I've read) are written by women from asian countries where the cultures are pretty conservative(religious/mysoginistic), the writers don't get a lot of exposure to the LGBTQ society in person(and the more open straight relationships too) AND even if they do get some, it might be hard for them actually understand the versatility concept because the gender roles are a lot more ingrained there.
I also agree hereeee... I've been looking for Manhwa/Manhua/Manga that has versatile couple for a loooooong time :( I only ever read one and I freaking enjoyed it so much hahahaha so hopefully the side couple progresses to them being one coz I'd love to see Dawun going crazed as he is being fückëd by his Alpha hehehe

I'm commenting this because of the user "UnhingedReader", who talked about how it's refreshing to see a couple in yaoi who might be vers. They both want to top each other. The alpha already bottomed once but is clearly still set on not wanting to exclusively bottom. He still wants to top the Beta.
I'm actually so surprised there's not more verse couple in manhwas or mangas.
I'm a gay man myself who is versatile and majority of all the guys I know who are into men are vers (eight people of the ones I know are vers while only three have set positions). I've also heard from other guys that they find that vers is the most popular "position" within the gay community.
Therefore I'm really surprised that manhwas and mangas haven't picked up on this, because I feel like I've read about 300 manhwas/mangas in my lifetime and maybe about 10 of them have included vers couples.
Maybe it is because most of them are written by women who haven't experienced being a gay man first hand. I think women write manhwas/mangas with set positions since they like the idea of straight sex, but they also like men instead of women, so they enjoy their porn being exclusively men, (but they also want someone who plays "the woman" aka the bottom, in the action).
I also think a lot of women write manhwas/mangas were the ML's/MC's have set positions since it's so normalised in straight relationships for the women to be the "bottom" and for the man to be the "top". But that's not always the case, even in straight relationships, I've spoken to a lot of women who peg their boyfriend and a lot of men who enjoys to be pegged by their girlfriend.
I don't really know what I'm talking about but I'd just LOVE for bl authors to write more vers couples since I just find it much more realistic, majority of gay guys are vers, so why aren't they vers in fiction?