ProtonVPN Flatpak/AppImage for Linux distros
These days it is very common to package applications across linux distros into flatpaks or appimages. These would be easy to manage for the ProtonVPN team and provide us with a working GUI app instead of the hard to manage cli client.
Gabriel Nunes commented
Or as a snap package?
Especially the AppImage is easy to use, takes less space, and deployable on many distros.
Tutanota is already offering it. It would be great, if you could offer your client as AppImage.
ALSO: with AppImage you are in the full control of the distribution as opposed to Flatpak and its hub.