cat /etc/X11/xorg.conf

Section "ServerLayout"
Identifier "layout"
Screen 0 "AMD"
Inactive "nvidia"
Option "AllowNVIDIAGPUScreens"
EndSection

Section "Device"
Identifier "nvidia"
Driver "nvidia"
EndSection

Section "Screen"
Identifier "nvidia"
Device "nvidia"
EndSection

Section "Device"
Identifier "AMD"
Driver "amdgpu"
BusID "PCI:5:0:0"
EndSection

Section "Screen"
Identifier "AMD"
Device "AMD"
EndSection