https://catalyst.independent.org/2019/12/18/how-houston-is-b...
I'm also really happy with how they have handled their homeless.
https://www.nytimes.com/2022/06/14/headway/houston-homeless-...
Multifamily housing is valuable against car-dependence in the context of a city street grid with mixed use zones or at least somewhat proximate neighborhood commercial zones. Then the people living there actually have destinations they can walk to, and routes they can bike or take transit on that aren't "snake around to the subdivison's one interface to the 6-lane arterial, and try not to die on it."
https://abc13.com/floodplain-housing-building-houston-flood/...
Houston is just second-to-last in line in Texas to face the affordability crisis (followed by San Antonio) because they have the highest capacity automobile infrastructure, but it's already regularly ranked with the worst traffic in the United States.
While I agree that Houston does a lot of things right, especially just literally allowing density, I do not think they would survive an influx of folks while maintaining affordability any better than Austin has.
The policy of building out is a law of nature, simply because it is impractical and unaffordable to upgrade the transportation infrastructure. The only real development you're getting in Austin is vertical construction downtown (which is net good for affordability), and then you're filling in the remaining wilderness east of Austin (Manor, Webberville, and the area out to Bastrop).
That's the last remaining unconsumed land that is viable for commuting, as the highways are already overcapacity out to Leander, Georgetown, Buda, and nearly Dripping Springs along the Mopac and 35 corridors.
If Austin starts building multi-family homes in existing SFH neighborhoods, then more power to them.