Something I notice a lot in asian languages is that the asian languages I do speak (Thai and Mandarin) are more situation dependent than english. It would be the listener’s fault to discern whether one is being truthful or sarcastic. I believe this is the other way around in most european languages. Bear in mind that this was something I learned many years ago, so feel free to correct me if I am wrong.
Animation is pretty hard for youtube, since you need at least 10 mins I believe, which is difficult for animation. And there’s already a large overlap between vtubing and animating so I would expect some channels to switch over, but not all.
I know JaidenAnimations has a vtuber model, but I do not think she uses it too often.