As a bisexual human, I like almost anything when consuming the pornography. But I can never find good bi content. It’s always some video that’s 20 years old and so over produced and acted that it’s awful to watch. But you can’t find any decent modern content with bi themes. Or its a gay/lesbian video wearing a cheap mask.
There’s no good bi content, because film makers don’t get bisexuality and don’t produce videos for bisexual viewers (e.g. it’s quite obvious that the main target of FMF videos is a cishet male audience)
Film makers just repeat the same stereotypes, like “threesome means hardcore sex”, “all bi guys like anal sex”, “only male pleasure matters”, “all girls are bi (or at least will kiss each other to turn on their male partner)” and so forth
As a bi guy, I’d rather watch a nice porn with a pretty couple and fantasize about both of them