To run on an Nvidia graphics card, I use the variables __NV_PRIME_RENDER_OFFLOAD=1 and __NV_PRIME_RENDER_OFFLOAD=1 - this is how I ran glxinfo to display information specifically about the Nvidia graphics card. With these variables, all games on Steam also work for me. However, your game refuses to run on both the Intel video core and the discrete Nvidia video card =(
In both cases, the launch of the game freezes with the message "Unable to read VR path registry"