Even though people claim to work 40-50 hours many times they are spending half that time watching videos or messing around, this is a generalization of course.
It’s true. It’s frustrating because when I was hourly at Google I was extremely mindful to always be working when I was billing. Don’t bill for lunch. Don’t bill for long coffee breaks, etc. But when I billed 30-35 hour weeks it felt like my manager thought I wasn’t working hard enough. It’s like... I was probably working just as much as many full time employees who don’t count their hours. My managers manager told me they expect people to sometimes work 50-60 hours on big projects and I was like “nooope”. 20 hours a week suits me nicely.