I bought it for more stable frame rates. Apart from some dev's not putting in the effort to implement proper frame-pacing (*cough* SE *cough*) or not bothering to check to see if the GPU could handle the higher rez without sacrificing the framerate, the experience has been good so far.
I think as more and more games come out, the devs will be able to better optimize it and that is when the benefit of the higher flops will be put into play.
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850