Installing
Then Add Flatpak Voyager Ubuntu Linux PPA.
Copysudo add-apt-repository ppa:alexlarsson/flatpak
Copysudo apt update
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then see: How to Enable sudo.Finally, Install Flatpak.
Copysudo apt install flatpak
How to Getting-Started Searching & Installing Flatpak Apps
Here Flatpak Apps Installation Quick Start GuidePlease Donate $1 to Remove Ads!Step-by-step Tutorial to Getting-Started Easily with Flatpak Apps Installation