Originally posted by Dullahan:

Anyone know how to load launch commands with r2modman because it seems to start with vulkan regardless of -force-opengl in steam. Vulkan leads to hitching in game after a while on Linux, while openGL is perfectly smooth but lower FPS.

I’m not at my desk, but you click settings on the left hand side, and then I think the profile tab, and there is a section for launch parameters.