You are seriously underestimating the advancement of GPUs over a 7 year time frame. When the PS4 launched the top end GPU was the GeForce GTX 780 Ti and the Radeon R9 290X, both around 2.5x times as fast as the PS4 equivalent GPU, the Radeon 7850. The R9 290X especially was 5.6 TFLOP, roughly a 3x increase in raw numbers over the PS4 GPU. Both metrics are larger then the difference between the XSX GPU and the 3090/6900XT in normal rasterization performance. The XSX GPU is equal to a ~2080 and the 3090 is only 70% faster then that GPU. The 3060ti is also less then 10% more powerful then the GPU in the XSX. That won't even cut it for a mid-gen refresh. Games that are going to stress the consoles in 5 or so years time (aka 1440p/30FPS) will ensure the 3090 struggles with 1440p/60FPS on those titles, especially with the higher settings that PCs run at. I don't think the 3090 will ever need to drop down to 1080p for this generation however.