Setting-up Nvidia Prime (Archlinux)

sudo pacman -S mesa mesa-utils nvidia-lts nvidia-prime nvidia-settings nvidia-utils
sudo pacman -R xf86-video-nouveau bumblebee
reboot
# sudo nvidia-xconfig --prime # only if you are not using wayland
yay -S nvtop optimus-manager  # just install optimus-manager, you dont have to use it, it will sort out some issues silently.
reboot

Then, verify the current GPU used with:

glxinfo -B

To run anything with Nvidia GPU, do:

prime-run glxinfo -B

Likewise, you can verify everything with:

glxgears -info
prime-run glxgears -info

While running those, you can open a new terminal and run the following command to monitor the GPUs:

nvtop