We have nothing of the sort. Reviews are bought and manipulated at scale. Dupe brands come and go month to month. Very few of the electronics I've bought on Amazon in the last 8 years are still for sale, but for most of them there are current listings with the same pictures and a "different" brand name.

Most reviews that aren't fake are useless and written within the first few days of ownership anyway .

Also Amazon very intentionally structures it's business to allow these activities to happen.

Like stock mixing.