Description
Gives sandboxed applications a standard way to request desktop features such as file pickers, printing, screenshots, screen sharing, notifications, settings, and URI handling. It is a core integration layer for Flatpak and other sandboxed app models.
This is a background desktop service, not a visible app. It handles permission-mediated access to private files, screens, devices, and desktop settings, so working portal backends are important for both usability and privacy.