These may be accurate and real, but I also wonder if this might partially be because Houston sucks in terms of lived experience for the homeless so they tend to end up elsewhere?

Texas has a recent and storied history of just busing people out of state or into other cities for people it deems are problematic or they don't want to deal with. So it would not surprise me if some of the stats are cooked or they've partially swept the problem under the rug.