You can report bugs and suggest features or improvements on the {issue-tracker}[issue tracker].
Creating Flatpaks
Your favourite application is not in the default repository and won't probably be added? You can do it yourself! Go through our tutorial for creating flatpaks from rpm packages:
https://docs.fedoraproject.org/en-US/flatpak/tutorial/[RPM to Flatpak tutorial]
To become an official packager you need to go through several steps to gain all required permissions to use the Fedora infrastructure (Pagure, Koji, Bodhi). There is a detailed https://docs.fedoraproject.org/en-US/package-maintainers/Joining_the_Package_Maintainers/[page] about becoming a packager.
Other useful links:
https://src.fedoraproject.org[Package Sources]