For me any that is not Greco-Roman and Norse have poor representation
Greco-Roman and Norse mythology are represented a lot, but in a very shitty manner with barely any research, let alone respect.
Yeah it’s funny that those were called out as exceptions because as far as ancient Greek mythology goes, Disney’s Hercules (one of the most widely known takes) basically made Hades = Satan and Zeus = God. I’ve also seen Hades get treated as Satan lite in DC Comics adaptations, basically unashamedly rewriting another mythology to base it around christianity. Meanwhile, from what I’ve seen, Hades was actually one of the few semi decent gods.
Indigenous people of north america. Tokenized parts of tales and folklore are often misrepresented and not told by people who grew up learning the stories.
Pretty much all of African mythology. Sometimes it gets mentioned tangentially or included in a half-assed way, and even then it’s almost always misrepresented. Anansi was my favorite character in American Gods, in part because I see so little African mythology, but also just because he’s badass.