[Article series proposal] Flatpaks cool apps

Article Summary:
Similar to 4 cool new projects to try in Copr we could put 2 or 3 great projects packaged as flatpak

Article Description:
In line with the objective of have more immutable use, we could focus on the projects that are packaged as flatpaks and show interesting projects/apps to the users.



+1. :slightly_smiling_face:

+1 from me.
Pagure #187 has been created to track the progress of this article and has been assigned to @x3mboy