It's pretty much the same as regular streamers. People do feel they are more "authentic", ironically, because since they are "anonomized" by their avatars it feels like they are more honest somehow.
It's bullshit tho. They're just as much playing personas as everyone else online. Some of them are very good entertainers, and quite funny, but most of them are just subpar comedians/actors/singers "enhanced" by some decent character design.
I do like watching some of them, but honestly, it's not really very relevant, they were just lucky because the pandemic raised online viewerships for obvious reasons, which exploded their channels.