p.s. there are now loads of companies offering a 4 day week: https://4dayweek.io/4-day-week-companies
It's a shame because I think of all the options presented as ways to increase quality of life this one would have the most drastic impact to the most number of people.
I thought that sounded great, even though the hours have to add up to the same amount as if working all ten days.
But it turns out that they are rigidly inflexible in that you are not allowed to choose a minimum variance schedule.
You have to "bank" extra hours on the first week and "spend" them on the other. And that means you have excessively long days on the first.
p.s. there are now loads of companies offering a 4 day week: https://4dayweek.io/4-day-week-companies