All my steam games that support dlss work with it, but my games using the heroic games launcher don't even show the option for DLSS in the game menu. I tried researching it but didn't have too much luck with finding a solution. I found one post saying that proton uses dlss by default, I'm using proton experimental but it still doesn't show up.
Heroic launcher is nice but I have had such a hard time enabling features like dlss and mangohud on it.
I'm using Linux mint 22.1.
EDIT: I fixed the issue. There is an option in heroic called "auto install/update DXVK-NVAPI on prefix" I had to enable it in the global settings and on the specific game. DLSS works now with frame gen.
I still have yet to get mangohud working with heroic tho
EDIT 2: I got mangohud to work with heroic. I had to use version 23.08
I second Linux mint. It's my daily driver and I love it. I first switched my laptop which wasn't much daily driver to mint and when I got used to it I switched my main desktop.