In fact, that's one thing the article talks about. Finland's successful plan focuses on 'housing first'.
"Finland’s success is not a matter of luck or the outcome of “quick fixes.” Rather, it is the result of a sustained, well-resourced national strategy, driven by a “Housing First” approach, which provides people experiencing homelessness with immediate, independent, permanent housing, rather than temporary accommodation (OECD, 2020)"
"Finland’s success is not a matter of luck or the outcome of “quick fixes.” Rather, it is the result of a sustained, well-resourced national strategy, driven by a “Housing First” approach, which provides people experiencing homelessness with immediate, independent, permanent housing, rather than temporary accommodation (OECD, 2020)"