Blinkg mouse cursor, black mouse square trailer and monitor refresh around the mouse

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"