Follow these simple steps to start using Flatpak
To install Flatpak on Kubuntu 18.10 (Cosmic Cuttlefish) or later, simply run:
With older Kubuntu versions, the official Flatpak PPA is the recommended way to install Flatpak. To install it, run the following in a terminal:
The Flatpak plugin for the Software app makes it possible to install apps without needing the command line (available on Kubuntu 18.04 and newer). To install on 20.04 or later, run:
On Kubuntu 18.04, you should run this instead:
Flathub is the best place to get Flatpak apps. To enable it, download and install the Flathub repository file or run the following in a terminal:
To complete setup, restart your system. Now all you have to do is install some apps!