Upscaling with FSR Optiscaler using GOVERLAY?

Could anyone shortly brief me on upscaling with cachyos?
I do remember one of the programs installed on my cachyos system right now had optiscaler mentioned somewhere or perhaps integrated. But i cant rmember which app was that, maybe proton or gamescope?

So i just want to ask, when i want to use fsr on cachyos should i do it like i did on windows, downloaded the optiscaler latest release move it into the game directory and run the linux setup file for configartion, or is there another or better way to do that on cachyos?

I think you may be describing Goverlay. I believe its part of “install gaming packages” in Catchy Hello.

This is my config on a 5090 which runs very well.

Yes that’s exactly what i was describing.
So when goverlay is enabled/active, does that mean FSR will also be available automatically or how can i use it?

You need to do a little research yourself on the specifics because i have forgotten the exact steps I took but once I configured my settings and pressed save it created the config file and it just works when I launch steam games.

I cannot remember if you need %command% when you launch a steam game, I think you did for a while but this is now injected automatically I believe.

Quickest way to test is just enable it , get mangohud running and look at the output.

It was as simple as running a game on steam with proton enabled and the launchoptions added, pressing the hotkey ingame and fsr was right there