However its worth pointing out that the 40h work week was considered hugely radical and was “cutting the nose” off of the Ford motor company business when it was introduced.
The other auto-makers followed shortly after and eventually it became a standard for nearly every working person on a salary. That was less than a hundred years ago, and as mentioned it was extremely radical at the time losing up to 50% of weekly working time for Ford (60hrs was average at the time)- yet we seem unable to stomach 20% reduction despite massively improved productivity and a much more “bursty” working environment than was conventional in manufacturing.