California recently started a Universal Basic Income Program (UBI) but, it is too early to tell if it will actually help reduce homelessness or instead cause a concentration of the US homeless population to migrate to California.

https://www.cdss.ca.gov/inforesources/guaranteed-basic-incom...

This article is from July[2022] and it has a more global review of UBI type programs that have been tried in the past or are currently in progress(Kenya for example).

https://www.moneycrashers.com/pros-and-cons-universal-basic-...