This isn’t really the gen Z stare, I’d describe that as a very neutral expression.
Honestly I don’t actually think the Gen Z stare has much to do with the internet or COVID either, as much as it’s just something that caught on among people in school. I think another large element is that Gen Z culturally a lot less judgemental of people who don’t mask autistic traits.
The general nodding and 'mmhmm’ing we do to affirm we’re paying attention is something that’s effectively a social contract, although useful. The flip side of the Gen Z stare that people don’t talk about is that Gen Z also don’t mind recieving the Gen Z stare, and can converse through it.
Funnily enough, when I do ask an LLM to rephrase anything I write, it changes any sentence with a semicolon to one with an em dash. I’ve probably always overused the semicolon because of its availability on a keyboard, but it appears a lot in my normal work.
Now I trust the semicolon, it’s an identifier of me.