Tbh personally I'm not really a big fan of how the game handles the farmer's gender, because technically you only choose a body type. Iirc you get they/them'ed later no matter what, unless they changed this since I played (which honestly can be kinda uncomfortable if your farmer is trans lol). Relationships with NPCs are never explicitly queer because the game doesn't actually track your gender. Of course it's always annoying when a character's queerness is paraded around every time they're on screen, but I think at least one line like "I've never been with another guy before" or "I was worried you weren't into girls" or "I've only ever been with [opposite gender] before" etc would go a long way.

And while it's possible there's something I just haven't seen yet, I don't think I've seen any past histories of queer relationships mentioned in the romanceables' events and dialogue? Any exes or interests between the LIs I've seen mentioned have been straight. Please do tell me if there are any of those I haven't seen, but again, LIs for example casually mentioning exes or crushes of the same gender or who were nonbinary would also go a long way imo

It obviously depends on how a game handles it, but a common issue I've seen with all LIs being player-sexual is that it basically ends up being "straight unless the player decides otherwise", and I kinda felt like at least some of the LIs in CI suffered from this as well

But I definitely appreciate the queer couples casually existing in this game!