[HELP] Using both AMD and Nvidia GPU in the same PC

CPU: AMD Ryzen 7 3800XT (Supported)

GPU: Nvidia RTX 2070 Super (Unsupported)

Mobo: AMD B550 (Supported)

My Turing Nvidia card (2070) is not supported by any version of macOS. Id like to purchase a cheap AMD GPU that is supported by MacOS and install it alongside my 2070 Super. Most likely an RX 460.

I'd like to use the 2070 super for windows and the AMD GPU for a hackintosh boot.

Is this possible?