You should look up CyFy on YouTube. He does residential building inspection in Arizona and the build quality is appalling. Broken trusses, lacking insulation, roof leaks, stucco with exposed wire backing on top of literal cardboard for structure...
Cracks in the sinks and tubs, walls so horrifying out of square you wonder how they managed to fuck it up that badly. Unlevel floors with humps or saddles. Tiles misaligned so badly you can take a strip off your foot without realizing.
There's always multiple things from the above in every house he posts... And it's not just one house, it's all of them. Literally all of them... They deny, delay, defend the shit out of warranty claims and at least in Arizona hope you close and don't raise a fuss before hand.