A flatpak for PrismLauncher Please see upstream README for more information.
1. Install MangoHud for Flatpak apps with the following command:
flatpak install org.freedesktop.Platform.VulkanLayer.MangoHud//24.08
2. Open Prism, click on the Settings button
3. Select Minecraft from the left panel
4. Select the Tweaks tab
5. Tick the Enable MangoHud checkbox
That's it!
The flatpak includes a prime-run script, which when set as the wrapper command in instance settings, runs MC using the Nvidia GPU.
Soon this should be unneccesary, as it has been fixed in the master branch of the launcher already.