I relaise that since doing the things on the link you provided I now have 2 NVDIA config
$ cat 90-nvidia-screen-G05.conf
Section "ServerLayout"
Identifier "layout"
Option "AllowNVIDIAGPUScreens"
EndSection
$ cat nvidia.conf
#This file is provided by xorg-x11-drv-nvidia
#Do not edit
Section "OutputClass"
Identifier "nvidia"
MatchDriver "nvidia-drm"
Driver "nvidia"
Option "AllowEmptyInitialConfiguration"
Option "SLI" "Auto"
Option "BaseMosaic" "on"
EndSection
Section "ServerLayout"
Identifier "layout"
Option "AllowNVIDIAGPUScreens"
EndSection
Also this the other GPU, the Radeon configuration
$ cat 10-radeon.conf
Section "OutputClass"
Identifier "Radeon"
MatchDriver "radeon"
Driver "radeon"