> - this only applies to task-focused jobs; e.g. the service industry still needs people to work all the time customers might turn up
This is a problem which service industry jobs have already solved by scheduling employees in shifts. A typical fast food restaurant may be open 18+ hours a day, 7 days a week, but they certainly aren't requiring each of their employees to work those hours.
This problem is only solved with a sufficiently large workforce willing to work evenings/nights/weekends, at sufficiently low prices.
For office work I don’t think many people care if they get the Monday or Friday off. Both are almost equally desirable.