Dual GPU, is it possible?

[kmlnvm]

Hello everybody,

I'm new here, today I've installed Catalina on my r9 3900X + gigabyte x570 gaming x.
However there's one really annoying thing that I didn't know before, my gpu is RTX 2070.
I had no idea that Catalina and Mojave don't support nvidia anymore.
I've got two gpu slots so my question is, is it possible to disable nvidia somehow and enable only second descrete GPU for Ryzentosh?
Would be RX 560 enough?

 

[sprl]

I'm running dual RX5700 XT, so yes and for Davinci is amazing!!!

 

[smicer prederik]

Here, too
using by 2080ti for win10 & using by rx580 for mac

1. aml editing
2. disable nvidia manufactor gpu on config.plist.