For a lot of folks it's a time optimization problem. You have to spend X time getting ready and commuting to work that in most cases is unpaid. If that takes you an hour and a half all in (half an hour each way and half an hour getting ready) that's 1.5 hours a day or 7.5 hours a week. Nearly a full extra "work day" a week that you're uncompensated for.
At the high end of things you have folks in medical professions who not uncommonly work shifts like three 12 hour days and get paid as if they worked 40 hours.
At the low end you have things like hourly workers being forced into doing split shifts where they'll be asked to cover rush hours at a coffee shop or something (7-9am) and (11am - 1pm).
No, having an entire day off is sooo much nicer than working less per day. You can plan something for the entire day, like golf for me as example. Plus, if you have kids, working 6 hours likely means your off time is all spent with your kids. Having a Friday off means you get that free time purely for yourself. (Advice from someone who’s done both).
A friend of mine prefers longer days. She says that she is too tired getting home from an 8h day to do much of substance anyway so may as well do 10h days and get a whole free day to do stuff with.
Basically instead of using your extra 2h a day to lie on the couch and swipe through tiktok or similar time wasting take a full day and do something useful.
That being said it sounded like the extra 2h at work were typically fairly quiet anyways so I don't think there was much value to the employer over an 8h day.
I worked for a while at a place that did 9/80 scheduling, essentially every other Friday off and it was quite nice. Of you did have things that took you away from work normally you just made it up by working a bit on the off Friday.
I'm curios, isn't there anyone that would prefer a 5 day 6 hour work schedule instead?