World’s largest ever four day week trial in Iceland ‘overwhelming success’
I work in a field (military) where "overtime" isn't a thing.  We can and do work 24+hour shifts without any extra pay.  Even during peacetime, if we need to work 16-hour days every day for a month we can do that without any financial cost.   We can also be sent home at noon every day without diminishing our wages a penny.That absolute flexibility does not reduce stress.  With no standard office hours we face constant negotiation over timings for basic events.  It can take weeks to plan the simplest meeting.  Bill doesn't work Saturdays.  Alice is on leave.  Ken is on a home-study course.  Hank's kid is sick so he is working from home without a secure computer.  I miss my civilian days back pre-2000 when everyone came to work five days a week.And somehow the entropy always flows up to supervisors.  At 0400 (4am) Sunday morning I took over a watch from my boss.   All the junior people are at home enjoying their flexible work schedules while the two senior people on the team end up covering the long shifts nobody else wants.  Set saturday-sunday weekends are a privilege.  Don't give up on them so easily.