Median household income in NYC for 2020 was $67k [0]. $100k (especially for a single earner, as is often the case in tech) is considered quite high, but not outrageously so if that makes sense? That's "1BR apartment in a nice but not too trendy neighborhood outside of Manhattan" money, so well on the upper side of middle class. I think people tend to overestimate how much money those outside of the tech bubble actually make.

[0] https://www.census.gov/quickfacts/fact/table/newyorkcitynewy...