Will you be satisfied if I, a nonbinary bisexual tell you that there practically is no difference with the only one that sometimes gets stated being that bisexuals often have some sort of preference in their partner’s gender whilst pansexuals are mostly unpreferential?
Most sexuality and gender labels are just some shit that someone thought describes them well enough to get a name. In reality almost all of them fall under some umbrella terms like bisexual or trans. I could technically map out my identity in detail but because I just don’t give a shit I just went with the broadest labels I could identify with without it becoming too misleading, which is why I don’t usually just say that I am trans but nonbinary instead.
The only reason I identify as bi instead of pan is because I like the bi flag more