It might sound crazy, but among people my age in IRL conversations, I actually have heard that message directed at straight people! A few times, I heard the straight person state clearly that they know what they like and just aren't interested in the same sex like that, but support those who do. Other times, I heard the straight person express that they are "openminded" and seem open to the sexual fluidity idea, despite having no same-sex interest.

I don't think it's even remotely as common as TQ-identified people trying to shame and pressure gay people into saying our sexuality is "fluid," but... I really do think that in gen Z and younger, this actually is happening. Then you end up with confused straight people like Helena who think they're bi/gay but aren't. LGB people don't have a monopoly on questioning their sexualities, but many people in gen Z seem to think that if you question you might be X, then you must be X.