Why? DLSS Quality is virtually indistinguishable from native. No reason to not turn it on when available
If you're unfamiliar with computer graphics it's unhelpful to try to nitpick and just end up being incorrect. Antialiasing is not downscaling, and less data is never going to beat more data for visual fidelity.
> less data is never going to beat more data for visual fidelity
It has less data but better processing. That can look better sometimes.
Except it doesn't strictly have less data. It has multiple frames and other information to work with.