Let's be precise here.... Houston did not "solve" the homeless problem.
They reduced homelessness in their city by just over half.
The article also mentioned that they had a larger than average supply of affordable apartments available.
In other cities, it might not work.
Also, like other cities, they are using surplus COVID relief funds.
What are their plans for after that money runs out?
In Central Florida around Kissimmee, there are a surplus of old abandoned Disney area motels and small hotels and a few further north in Orlando as well.
They've been retrofitting some of these hotels and motels into small apartments for homeless people to move into.
It's cramped living for families, but it beats living in a car or minivan.
Sadly, no matter what you do, there are just always going to be homeless people.