Nvidia introduced Freestyle Sharpening 3 weeks ago and the image is not a year old, in fact it's 10 days old and is from this very interesting article.
Hardware unboxed about Control DLSS (DF Video):
Very interesting analysis as always from you guys! It seems there has been a significant change in the way Nvidia has approached DLSS for Control. For older titles we said downscaling + sharpening was just as good, because DLSS was too expensive in its computation so when you matched downscaling to the performance of DLSS, it didn't hold up image quality wise. Now it looks like the quality vs performance battle has swung back in favor of DLSS over that method. Also very interesting that this might not require any RTX-specific hardware, hopefully this tech can become more widely available. We'll definitely look into this for yet another DLSS follow up
BTW HU is AMD-biased.