Yep. There are too many VTubers. And way too many people using 2D models but not portraying any character for the sake of hopping aboard the Trend Train.
I started to follow a boy who makes guides for girls frontline on youtube and in his live streams he uses a model of hk416 animated like a vtuber, thanks to that I discovered that they sell programs on steam to be able to create them and I understood now how expressions and other things work