ah, well off the top of my head i remember that she apparently had someone storyboard the "poison" song that had like a rape fetish or something? That was a huuuge thing around when hh came out I'm pretty sure, I don't know how much it really matters at the end of the day but it is still concerning + some of the off-color sa jokes
She also apparently supported zionist companies in the middle of an international boycott, but I don't really know anything about that tidbit, just seen it floating around
The old old 2018 ish stuff that I see floating around have been semi-debunked (and had thin evidence in the first place) especially the huge claims about pedophilia, zoophilia, and bestiality. I think that was mostly people being insane on the Internet though but who knows
The thing where she was "stealing peoples art" is also debunked, she bought a character from (I think?) dollcreep and some stuff happened. There was also a rumor that she didn't pay her workers or something but there wasn't really (?) any evidence that the person claiming this was actually them (or was actually an employee?) idk it's been a while since that happened.
She gave art to controversial creators in like 2016 but at this point I don't think she really supports them or anything.
There's also pretty big criticism that she doesn't write women characters respectfully (them either being presented as exploitative in nature. Or if they're good, given little screentime/character development compared to the male cast).
I think a lot of the drama she falls into comes from her lack of media training. She interacts and gets hung up on online criticism that feeds into people arguing and it's just an argument loop. I don't think she's really that bad or anything, just a bit too human and online for such a massive following so she makes mistakes