Hi Cavalini and welcome to the forum,
We have kind of settled on deploying by using a common Qt installer Framework with our own repository for application updates. Considering our very small team this is an effective approach and we can manage a release every 6-8 weeks or so. More important, the use of AppImage for Linux under the package hood, gives us one installer for all Linux flavors. This works smoothly for us.
However, anyone is free to add official packages if they so choose. It will help if such packaging does not change the application code or file locations as this will then lead to support difficulties. Since we moved to the Qt Installation Framework the number of installation issues has dropped dramatically and we would like to keep it that way.
David