You still need doctors. You still need police. You still need yoga instructors. Plumbers. Somebody to fix your internet. And the need to pay those people means you will still need to find a way to earn money. Plus, land is still expensive because physics, and now that people can afford to pay more, landlords will charge more. Want higher density? Zoning is also not free. Nor are architects and builders.
All that happens is that goods are excluded from the economic system, but the system will keep going. The prices for still-limited services will simply go up to the point where you will still need to work 40 hour weeks to afford them.