Hybrid amd/nvidia graphic card on kde

Is there anyway to get hybrid graphic card amdgpu and nvidia 1660ti working together like windows but on arch linux. i notice while installing windows it goes into debug mode to do whatever it does to get it working. Has anyone figure to backward compatible. currently my build-in screen remain dark or extreme dim that i had to put a flashlight to see the icon or what ever on the screen and the same time i got the external screen work perfect.
with Debian build-in screen and the external but only with AMD graphic alone.

While we’re a very open source focussed platform you’ll likely have better luck asking either at the KDE https://discuss.kde.org/ or Arch https://bbs.archlinux.org/ forums.