Honestly, I bought my X1 Extreme Gen2 explicitly for the Nvidia GPU. Having had trouble to get multiple external monitors to work, along the integrated display, I run it basically since day one with the Intel GPU deactivated in Bios. My understanding is that, besides the fingerprint reader, dual GPUs are the main problem regarding Linux on that machine. If so, I don't care. Not that I had the time trying it out so yet.