depends on whether you're using the MOGAI definition of bisexual as "attracted to exactly two genders" or the LGBT definition as "attracted to more than one gender"

in practice there really isn't much distinction, i don't know a single person who identifies as bisexual and wouldn't consider fucking a non-binary person, and the main distinguishing factor between people who label themselves bisexual and those that label themselves pansexual seems to be "was this person active on tumblr or other online communities with a similar vibe at any point between 2014-ish and now".

afaik pan and bi are the same, with the difference being preference

Yes, if you're not into the whole paucity of vocabulary thing, that would be a better term.