NextGenTips published a tutorial about installing Flatpak on Ubuntu 22.04.
How to install Flatpak on Ubuntu 22.04
Flatpak is a utility for software deployment and package management for Linux. Flatpak offers a sandbox environment in which users can run application software in isolation from the rest of the system. Flatpak can be used by all types of desktop environments and aims to be as agnostic as possible regarding how applications are built.
