Nvidia on Catalina, is there an option to external display only?  

I have a MBP16, I successfully installed and configured an external GPU (Nvidia 1080) on Windows (bootcamp).

I have convinced that is impossible to make it work on OSX Catalina.

But, I need only that external display work, no GPU acceleration, is there a way, only to connect a monitor and work on osx?

Thanks!