For anyone who gives a shit...
Ray Construction mode for Nvidia is p. incredible.
You do get a massive framerate boost from using Frame Generation, but, once you figure out how to actually get it enabled in CP2077, Ray Construction Mode goes even a step further.
With my 4090 in 1440p, I've got every single option in the game possible set to the highest quality there is, including Psycho mode for ray tracing itself, etc., and I'm capping out at 138fps, often maintaining that (138fps is an expected and normal cap for 144Hz users if you use Nvidia Reflex which is automatically enabled when using Frame Generation -- Nvidia feels that going above that is approaching too closely to your monitor's actual refresh rate and avoids that).
Say what you want to about the game itself, but with features like this and a nice, tailored ReShade or whatever to get the sharpness, tint, and other aesthetic aspects of the graphics tuned the way you like it, it's even more gorgeous now. Still a little grainy for my tastes, but I'm willing to put up with that.