I encourage you to check out the OSX-PROXMOX project, which fully supports AMD and is designed to simplify these inside-a-VM setups (though not as much as a Docker setup). https://github.com/luchina-gabriel/OSX-PROXMOX

Also, there are a couple of kext projects that allow you to use AMD graphics, even iGPUs, on Hackintoshes. I have not tested this myself, but there are rumblings you may even be able to get this to work with a Steam Deck.

https://github.com/ChefKissInc/NootedRed

https://github.com/ChefKissInc/NootRX

A lot has changed in the Hackintosh space around AMD of late. I don’t think the automatic pessimism is as warranted as it once was.