When people stop wage-slaving and start "fulfillment labour", things won't change much, as the fulfillment-labour (the self-realization via activities one always wanted to pursue) has still been defined in terms of work and jobs. That is: As soon as people stop wage-slaving, the "real work" they thought they've been "meant" to do, disappears as well. Which is why many people in unemployment suffer so much.
IMO, at the base lies a pretty simply question: As people learnt to "define" themselves via their wage-slaving/job/fulfillment-labour, their personality crumbles when they are no longer capable of doing that. Thus the important question becomes:
"Who am I when I can no longer define myself via my job/fulfillment-labour?"
In order for people to get rid of their addiction to work (*not*: workaholism, but their dependence on defining themselves via their activities and achievements), the 4-day working week will be a necessary step towards making people incrementally get used to a state of being in which they don't "define" themselves via their activity any more.
The next step is the dissolution of "defining through one's own activity" towards "defining through activity at all", regardless whether it's "here" or "there". Then definitions like those through ones's relationships, what one has in common with others, etc., may arise
Only then are people allowed to take up a pen or a chisel again. :-) When their activity is beyond addiction.