The GPUs going into data centers aren't the kind that can just be reused by putting them into a consumer PC and playing some video games, most don't even have video output ports and put out FPS similar to cheap integrated GPUs.
And the big ones don't even have typical PCIe sockets, they are useless outside of behemoth rackmount servers requiring massive power and cooling capacity that even well-equipped homelabs would have trouble providing!
