doc: gamescope commands

guides/gaming-void.md

@@ -8,7 +8,7 @@
 - Heroic Games Launcher : ["heroic"](https://heroicgameslauncher.com/)
 - Emulation apps : rpcs3 - rpcsx2
 - Steam Libs : libgcc-32bit libstdc++-32bit libdrm-32bit libglvnd-32bit mesa-dri-32bit
-- GameMode : gamemode
+- GameMode : gamemode gamescope
 - MangoHud : MangoHud MangoHud-32bit
 - Vulkan Libs : Vulkan-Headers Vulkan-Tools Vulkan-ValidationLayers-32bit mesa-vulkan-radeon mesa-vulkan-radeon-32bit vulkan-loader vulkan-loader-32bit libspa-vulkan libspa-vulkan-32bit amdvlk
 
@@ -25,27 +25,22 @@ sudo usermod -aG bluetooth,input hesam
 Inside this file : /etc/bluetooth/main.conf
 edit ControllerMode to bredr
 
-## Run Steam games with GameMode and MangoHud
+## Run Steam games with GameMode and MangoHud and GameScope
 
 Modify the game's launch options on Steam to use the created script. Right-click on the game in your Steam Library, choose "Properties," and under the "General" tab, click on "Set Launch Options." Enter the following command:
 
-```bash
-gamemoderun mangohud %command%
-```
-or
-
-```bash
-mangohud gamemoderun %command%
-```
-
-or
-
-```bash
-env MANGOHUD=1 gamemoderun %command%
-```
+- Enable GameMode :
+  ```gamemoderun %command%```
+- Enable MangoHud :
+  ```env MANGOHUD=1 %command%```
+- Enable GameScope :
+  - with fsr : ```gamescope -f -F fsr -- %command%```
+  - downscale resolution : ```gamescope -f -F fsr -w 1980 -h 1080 -W 1600 -H 900 -- %command%```
+  - upscale resolution : ```gamescope -f -F fsr -w 1280 -h 720 -W 1600 -H 900 -S integer -- %command%```
+  - fps cap : ```gamescope -f -F fsr -r 30 -- %command%```
 
 ## Disable Fps Cap on Valve Game
 
 ```bash
 gamemoderun mangohud %command% +fps_max 0
-```
+```