If you absolutely cannot buy an AMD GPU, consider these (imperfect) alternatives:
These results indicate that the Intel UHD Graphics 730 has a relatively low power consumption and thermal footprint, making it suitable for compact systems and laptops. intel uhd graphics 730 hackintosh
Apple transitioned to its own Silicon (M1, M2, M3) before Intel released the 12th Generation CPUs. Kernel Support: If you absolutely cannot buy an AMD GPU,