Please note that this is not an official package and is not supported by ProtonVPN.
Please uninstall the old ProtonVPN app before installing this package (here: issue #3).
sudo pacman -R protonvpn protonvpn-cli protonvpn-gui
sudo rm -rf /usr/lib/python3.11/site-packages/proton
git clone https://github.com/Zylquinal/protonvpn-bin
cd protonvpn-bin
makepkg -si