As hunter-gatherers (95% of human existence), people used to work about 17 hours a week. That is seen as optimum from an evolutionary point of view. The expectation of a 35/37 hour working week is a modern construct. So it's less work, rather than no work. And sharing round the useful jobs, rather than inventing pointless ones to keep people controlled.
It will be more like everyone is semi-retired. Maybe broadly splitting time in thirds between learning, earning and leisure. There will definitely be more time for arts, sports, lifelong education and socialising. It will be based on individual choice though (and work will still reward), rather than being wage slaves.
Here's an article which covers it in a Five Star context, especially this paragraph:
http://www.demsoc.org/2014/04/22/five-star-movement/
The party supports free internet, pacifism, same-sex marriage, large-scale energy projects and teleworking. Economically it is anti-austerity. It also has anti-tax views. It also supports ‘degrowth’, an ecologist, and anti-capitalist economic policy that views overconsumption as at the heart of environmental problems and social inequality. Degrowth instead suggests well-being is better maximised through sharing work, consuming less, and devoting more time to family, culture and community. The party supports a 20 hour working week, monthly stipends for the unemployment and debt renegotiation.