As a biromantic asexual woman, I refer to myself as bi or pan interchangeably.
When I looked at the definitions and using my background knowledge, it appears that both sexualities love regardless of gender.
While bisexual people like men and women, I also heard that very few of them won’t date other genders. Some bi people will only date cis men and women, others only men and women in general, and some will date nonbinary people and not care.
So anyway, don’t both sexualities love regardless of gender and find everyone attractive?
Really, not much, but there are some ideological ones sometimes. It’s a label based on personal identification. Some people say that only pansexuals are trans-inclusive when that’s not the case.
In some bisexual communities, bisexuality is defined as loving 2 or more genders. Not necessarily (but usually) men and women. Additionally, some bisexual people will date multiple genders, but not all of them (maybe they have specific preferences, whatever).
Being trans myself, I find it off-putting when pansexuals describe their sexuality as “I love men, women, and trans people” because that’s incredibly othering (to me as a binary trans person), but it seems like people say it less now than they did in 2012 when I was a baby tran. It’s weird to separate us entirely rather than viewing us as just another “type” of man or woman.
For a NB person that doesn’t apply since they’re neither a man nor a woman, but I can’t speak to how NB people feel about that phrase.