I had a job that offered your choice of 4x10 or 5x8.
Many people took the 4x10 but then discovered they couldn't handle 10 hour days every day. Like you said, the last 1-2 hours were so unproductive they might as well have been not working.
So some people didn't even try to work those last 2 hours. They'd sit at their desks and watch things or play games, pretending to work when anyone came in. Kind of ruined it for everyone.
So you traded 1 whole day for 2h a day to do whatever you wanted but at the office?
Sounds like you spread Friday across the other days. Still a good deal to me, I'd take some online courses or something I wanted to do anyway in my free time.
Many people took the 4x10 but then discovered they couldn't handle 10 hour days every day. Like you said, the last 1-2 hours were so unproductive they might as well have been not working.
So some people didn't even try to work those last 2 hours. They'd sit at their desks and watch things or play games, pretending to work when anyone came in. Kind of ruined it for everyone.