Problem with these kinds of statements is that.. well, they're not true. I have RTX 2070 running in 3440x1440. I'm at 35fps on low settings with some special stuff turned off, e.g GI and fogs. In an small town with 4k inhabitants still, so things can get worse for me.

Regardless, the problem is blown out of proportion. I think we can give it some weeks and 4090 performance issues will be in the past.