Final Fantasy 7 Rebirth director Naoki Hamaguchi says that "the presence of diverse, authentic relationships" like the JRPG's same-sex couples help enhance the "realism" of the game's world, and he and the other devs at Square Enix were "incredibly happy" to see fans "paying close attention even to these subtle interactions."
If you watch and listen to the NPCs populating Final Fantasy 7 Rebirth's world, you'll have no doubt noticed that there are multiple references to queer romance and relationships – whether it's a man talking about his "dashing" new partner as a friend congratulates him for finding "the one," or a woman asking a female friend if she'd consider dating her after she declares that she's "over men in general."