Isn't it common in US to work less than 40 hours/week?
In my country most companies offer 35 hours/week jobs, the country's average is 33 hours and it's illegal to work more than 48 hours including extra hours, but I know that in countries like Germany, the Netherlands or France is less than 30 (Germany is 26 if I am not wrong).
It's mostly public jobs and white collars here, I work as a software engineer for a large insurance company and the standard insurance contract is 33 hours a week, I have a different contact and nominally I should do 40 hours, but working from home I do about 30, full salary (nobody checks the hours anymore).
During the pandemic I had no chances of going on holiday, so I kept working and I still have 40 days of paid vacation left from 2020+2021.
It's pretty standard here.