flatpakcommand at the end of this step.
In order to install YouTube with GNOME Software, launch GNOME Software, which is called just Software, search for YouTube and finally click the Install button.
Alternatively, launch a Linux terminal emulator and type the command below and press the Enter key to install the package.
flatpak install nuvola eu.tiliado.NuvolaAppYoutube
Alternatively, you can launch YouTube from a terminal:
flatpak run eu.tiliado.NuvolaAppYoutube