Switcheroo-Control D-Bus service to check the availability of dual-GPU, integrates with the settings of KDE/plasma Gnome, and Cinnamon: “Launch using Dedicated Graphics Card” menu item appears on application starter contextual menu per example.

Install it and enable the needed systemd-service:

sudo pacman -Syu switcheroo-control
sudo systemctl enable --now switcheroo-control

GNOME

https://wiki.archlinux.org/title/PRIME#GNOME_integration

GNOME will respect the PrefersNonDefaultGPU property in the desktop entry. Alternatively, you can launch applications with GPU by right-clicking on the icon and choosing Launch using Discrete Graphics Card.

KDE/plasma

You will see the option on Launcher settings:

Cinnamon

You will have the same option in Launcher Settings to tag “Use Dedicated GPU if available”

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credits:

_{Monitor icons created by Hilmy Abiyyu A. – Flaticon}

_{Gpu icons created by Good Ware – Flaticon}

_{Chip icons created by Freepik – Flaticon}