Handling package updates for applications with frequent content changes

There are two aspects of your question. The first one is whether your application is a stable release or a beta release. Flathub requires stable releases. See: https://docs.flathub.org/docs/for-app-authors/requirements#stable-releases Second aspect, Flatpak uses delta packages to reduce download sizes between updates. See: https://docs.flatpak.org/en/latest/repositories.html#publishing-updates