This used to be the space that paper magazines handled, and to a limited extent orgs like Consumer Reports still do.

"User" reviews are bullshit, and far too easy to game. And Amazon's system bodges together distinct products, so you can't even tell if you're reading a relevant review of the thing you want to buy or a different model/size/anything.

I sometimes wonder if an independent review site would be a business idea. Crap merchants would avoid it anyway, but anyone with a solid product would get a tear down, lab report, subjective review, and objective performance details, with a couple of follow-up purchases just to check the product hadn't been substituted.

Result would be high-value products standing out from the noise, with some objective reassurance for customers - which is the opposite of the Amazon model.