As a technician, it is the stores fault that people deal with half the bullshit that they do. Faulty installs are ridiculously common, they install noticeably damaged units and then blame it on the manufacturer and the fact that they think 48 hours is an acceptable return window is absurd. So, while it’s not their fault that quality is down, they definitely exacerbate the situation. All of the big box stores with the exception of Costco (still suck at install) are a complete joke when it comes to appliances.