I recently started a new job and it goes a bit like this: the 5 weekdays I average about 11 hours per day (office time only, no commute). My commute is about 45/50 minutes in total (2 ways). I usually spend at least 2-3 hours on each weekend day, but sometimes it can be as much as 7 hours. When I am on holiday I usually login 2-3 times for a few hours (2-3).

I work definitely more than the average in my company, although not by much, and the weekend/holiday bit not many people do, although some do it. I find it that I am extremely productive the whole time: I constantly create new things and I get a lot of ground covered. It often happens it is 6pm, I have an idea, and instead of going back I push it. 2 hours go by but the idea is finallized and I know tomorrow I can start something new.

I don't feel burn out, but genuinely interested in my job. I read a book every night before sleep, exercise for 30 mins after work, and spend time with my partner. I thoroughly enjoy weekends, I often work on side projects and hobbies, and I do chores with my partner, and also speak with relatives.

The only reason I would ever need more time is if I have kids one day. But otherwise if I had to work 9 to 5 I would feel like shit because I will be watching netflix for like 3 hours in the evening, which is what I used to do in my first job. So constraining myself actually is great for not wasting: I am direcrly converting my time for knowledge and money, until I need to have kids.

Long story short, some people find extra free time pointless unless they have something meaningful like kids to spend it on. I do believe a lot of people are not willing to work so much, but to those that want free time, I will tell you this: be honest with yourself if you are making the most of it.