Disabling unsupported or spoofing supported GPU?

Maybe I'm old, but I don't understand the meaning of "spoof" in Dortania's guide about Disabling GPU. Am I supposed to be entering the device/PCI path of the GPU that is supported or the one that is not supported here?

I have two GPU: one supported (GT 710) and one unsupported (RTX 3090).

submitted by /u/H00NER
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