I originally thought DLSS was a meme, but after not being satisfied with my SkyrimVR performance I tried the mod that enables it and the performance bump vs. image fidely is appreciable. I still think it's baffling that it has quickly become a crutch for shit optimization but VR is one area where it might be useful since not everyone has 4090s. Problem is, if you're using it you at least have a 3000 series card meaning you probably get decent performance in most games already.