Can you prove that and yes in the past they were caught doing that.
Nvidia set the new ceiling price with the 2080TI and Amd followed a lot of you were happy buying a 2080TI and 3090, as soon as the 2080TI flew off the shelves Nvidia and Amd saw what people were willing to pay.
By buying those cards you set the price for the future, it is quite funny that some of you dismiss Amd under cutting the 3090, but it is your money do what you want with it.
I don't buy at that price so don't really care, yes I would like cheaper cards but if people are willing to pay the price they will keep making the product at that price point.
Exactly. Say you have a shop, you price things at as high a margin as you can and see who bites. No one bites? Lower the price. People can't get enough? keep the price as is and see if you can push it further next time. Is that kind/right/ethical? Probably not but businesses are in it for themselves first and foremost so I'm not particularly shocked.