same for arch linux (nvidia-open)
works with wine tho so no one really cares
idk what desktop environment you are using but you need to unzip the file yourself
then go into a terminal and type chmod +x ./Downloads/<unizpped folder>/robes-beta-5-linux.x86_64
now you can just launch it from your file explorer by double clicking it or run from terminal with ./robes-beta-5-linux.x86_64