Does straight omegaverse stories actually exist? No, Im not talking about stories like gir...

There is one i read two years ago but I've forgotten the name. It's set in an office and i think the characters have animal characteristics. It's tagged as josei i think. Lemme search for it and I'll get back

https://www.mangago.me/read-manga/sweet_heat_before_falling_in_love_the_ceo_and_his_fated_omega_official/

I found this one but it's not the one i was talking abt. It was a good read tho

Fr. Need a male omega and female alpha rn

https://www.mangago.me/read-manga/one_night_only/ personal fav, the side stories are not great tho LMAO but the main story is nice

If I understood correctly you DON'T want 'role reversal' straight omegaverse with an alpha woman and an omega man, but a straight omegaverse with a 'bottom' FL. Yes they DO exist lmao, I know of a few:
https://www.mangago.me/read-manga/which_alpha_do_you_want_to_play_with/
https://www.mangago.me/read-manga/chains_of_restraint_imprint/
https://www.mangago.me/read-manga/the_king_s_omega_the_cold_alpha_devotes_his_love_to_his_one_and_only_soulmate/
https://www.novelupdates.com/series/do-flowers-bloom-in-the-fallen-land/ (this one is a novel)