How do you hope to solve this problem in general? It applies to every product with an opaque supply chain, which is pretty much every product. The only reviews

How do you hope to solve this problem in general? It applies to every product with an opaque supply chain, which is pretty much every product. The only reviews that matter are the long-term ones, which are rare, and by the time a long time has passed, the original model is no longer made (or worse, a cheaper process is used to make something under the same name). The only approach I can see is to trust in a brand. But companies making commodified products like household appliances seem happy to have burned all their brand good will in exchange for short term profits, meaning I no longer trust any of them.