>>77192803Streamers, especially after they reach a certain threshold, usually don't work on their own clip channels. They hire some editors to do the menial clip work on the channel. The editor usually has a folder with like a dozen stock face expressions of the streamer, and copypastes them onto every clip (along with all the other copypaste formatting, like title fonts/placement etcs, they'll just copypaste the same template they see everybody else using, because "hey, it works for them, lmao").
So if you ask, why does "she make the same face", the simplest answer is probably just a boring "editor guy is just lazy with his templates"... so, just like every other big streamer you see making the same handful of stock faces in their thumbnails.