It is, however, recreating the subjective sharpness of native. Which is important. That's why we use a sharpening filter when we play games at lower res and then use GPU scaling. The upscaler will produce a blurry image. If you want to get the same sharpness as native, you need to oversharpen the low res image so that after the blurry upscaling it looks subjectively as sharp as native. Of course the problem with that is the introduction of sharpening artifacts. FSR seems to keep those to a minimum. Note: the same sharpness, not the same image detail.