Optimus Manager - Manjaro
https://wiki.manjaro.org/index.php?title=Optimus_ManagerThis Linux program provides a solution for GPU switching on Optimus laptops (a.k.a laptops with dual Nvidia/Intel GPUs). Manjaro is supported: Only Xorg sessions are supported (no Wayland).. Supported display managers are : SDDM, LightDM, GDM.The program may still work with others but you have to configure them manually, see Using a different Display Manager.
NVIDIA Optimus - ArchWiki - Arch Linux
https://wiki.archlinux.org/title/NVIDIA_OptimusAvailable methods. There are several methods available: #Use Intel graphics only - saves power, because NVIDIA GPU will be completely powered off.; #Use NVIDIA graphics only - gives more performance than Intel graphics, but drains more battery (which is not welcome for mobile devices). This utilizes the same underlying process as the optimus-manager and nvidia-xrun options, it …