External GPU with OSX experiences?

Hey

I’m starting to reach a point where the on-board intel GPU in my mac mini is not up to snuff, and been thinking about getting an external GPU.

I’ve always been concerned about memory bandwidth and bus speeds, but maybe its not really an issue in practise. I’m not doing anything super crazy, just drawing triangles, shading etc.

Does anyone here use an external GPU? How have you found it to go?

Seems like only AMD is officially supported - https://support.apple.com/en-au/HT208544