Not unheard of. QUite a few modern games look better with DLSS than native due to how DLSS works (specifically the output stage where image reconstruction is done and the detail sharpening). Cyberpunk is the same for example.
Regarding DLSS etc^^
Here were my findings, DLAA vs DLSS (3440x1440 & 5160x2160):
https://imgsli.com/MjQ5MzEz
(do not compare the 3440 res ones with 5160 res as I have not rescaled the 5160 so when you zoom in with both side by side, the 3440...