Unfortunately this is still the case in all the universities I know, especially in fine arts and humanity, many of the positions are even unfunded. Many students need to sublease their living room or live in a single bedroom in a house, with shared kitchen and bathroom.

I think many less-well-funded students literally cannot afford a studio or 1B, because the rent will be higher than their salary. Even for CS, math, and bio, the rent of a 1B will still be very close to their stipend.

For reference, I work in the department with the highest pay in my entire school, and my school is an extremely well-funded Tier 1 ~ Tier 2 school in the U.S. I make less than 2k8 after tax, and 1B at the outskirt of my city (40 mins walk to university) cost around 2k2 per month. Of course, an rat-free apartment will cost much more.

Even for these extremely well-funded departments in extremely well-funded schools, almost all of the PhD students are still paid under the living wage. See https://csstipendrankings.org/ .

To summarize: of the 60 schools listed,only 1/3 are paying their CS PhD students a living wage. Schools not paying a living wage include Havard, MIT, Stanford, Columbia, UChicago, and many more.

This is why you see so many grad worker strike in recent years.