The DLSS .dll version that Rust uses is 1,217 days out of date.

https://preview.redd.it/t44qbbrp3ryd1.png?width=321&format=png&auto=webp&s=e663c508c441f7d053e70f4b8a757ab0c6f29f33

Updating this .dll takes about 5 seconds on a users end by swapping out the nvngx.dll file, unfortunately this isn't possible due to EasyAntiCheat as the game will simply disable DLSS if you update the .dll manually. Facepunch can significantly increase the quality of DLSS, and most importantly allow for DLAA if they simply update the .dll file on their end. There's over 3 years of DLSS development that is being held back. Players who want competent AA are currently stuck using TSAA which is frankly terrible.

Edit:https://www.techpowerup.com/download/nvidia-dlss-dll/#changes-2-2-10 Link to 1217 days old source