Has she been doing actual GFE, or has she just shown a pleasant demeanour on stream so a bunch of autists have convinced themselves she's GFE? I've seen the latter happen quite a bit.
GFE is in the eye of the beholder.
I'm not interested in the Rushia type. So she was just a quirky character in a slice of life anime acted out in real time.
To others, she was peak GFE.
Other people may not be interested in quirky goth girlfriends who are into biology.
I am.
So Shiori is the moment I realised that I didn't look down on GFE as such. There just hadn't been a streamer providing the kind of GFE that'd suck me in before.
Inhowfar this is intentional on her part, I do not know. Though judging by Natsumi Moe...
... I don't know about the goth part, but that aside, it's mostly just how she is, I think. It's a touch less in your face, a touch more casual, a little bit less matter of fact, a little more sensitive, but that's about it.
Needless to say, being pretty sure that acting plays a relatively little part of it
doesn't help when you're into that kind of personality.