I think it's amazing how gender seems to have a very loose definition in the cr universe so much so that the concept of queerness doesn't seem to exist.
There seems to be no differentiation for between what we would call a hetero couple and a same-sex couple, there is a universal tale about two sapphic women and their love for each other (SeaMoon), a lot of non-binary characters, cookies do not seem to care that much about gender overall.
My first and most reasonable lore-wise explanation for this is that cookies don't have anything to determine what we would call "biological sex" which leaves gender to be determined by the individual themselves or the ones who created said individual (parents or the witches/wizards). I think gender was introduced to the Cookie world by the First Witches for uhh... vibes ig, even. This lack of full internalization makes for the fuel of the queer-positive world CookieRun has.
Queer-positive, as *we* would call it.
This section will be the section i dive deeper into phiolosophy and you're allowed to disagree with me, just keep it respectful if you wish to strike a debate.
I had mentioned how gender seems to have a loose societal definition and so doesn't affect everyday life as much as it does in the human world. Gender is just as socially constructed as it is here, maybe even "more socially constructed" since Cookies do not have the physiological base to actually build such a concept on. Gender hangs very absract and so, experimenting with it is allowed because cookies don't fundamentally see things with as gendered as we do.
And this near-lack of gender in perception is what makes the concept of queerness non-existent. No label is existencially tied to any object or tangible body, that is just something we as concious creatures do to either define or classify said object. A rock isn't really "a rock" until we call it one, likewise a woman isn't really "a woman" until you call them one and vice versa. If we apply this framework to the near-lack of gender in perception, the love between cookies of the opposite gender and the same gender wouldn't be very different because gender is not what you see when you look at the sides. Cookies are implied to procreate asexually so any attempt to distinguish a so-called homosexual and heterosexual couple would ultimately fall short in the context of Cookie world.
The case of genderqueer individuals can easily be figured out from there; since gender doesn't have an exact definition and doesn't even matter that much, it isn't considered a very unusal event to come across a Cookie who doesn't really claim a gender (or see a blue coloured cookie change their gender every once in a while). What we would call cross-dressing also... it's also very casual as you see.
So... Gender isn't strictly defined so there are a lot of ways to experience it without any limitations, it is more personal and does not concern the society around you. The simple idea that gender doesn't have a rigid societal definition itself sparks that the concept of being queer doesn't have to exist because these cookies we would consider "queer" in our world aren't considered "odd" or "unusual" in their own world.
I'd like to drop this since pride month is ending and i wish to say goodbye by mixing my greatest hyperfixation and bits of my opinions on gender. This is a word salad and doesn't really make any sense so if you have questions about my reasoning feel free to ask me, I'll do my best to explain clearly what i intended to say. Have a good day/night and take care of yourselves!