Degrowth doesn't mean ending capitalism, it just means living a little bit more communal, you need to check out items from the local community garage which there'd be one every two blocks.
With less material possessions also comes the need for less space in homes, so we can build homes just big enough, saving resources, etc. We can also use new building techniques life binishell homes that cost under 20k and are earthquake proof and very well insulated.
Nothing I've said ends capitalism, it just tapers materialism a bit