[tuxychandru]

If the primary concern is the lack of a common packaging format/app store, please consider publishing to https://flathub.org/. It should solve these for you across all distributions.

Testing should also be simpler as most of your dependencies will bundled and testing in one distribution should suffice.

[unhammer]

Alternatively https://appimage.org/

As a user, I much prefer AppImage – snap/flatpack feel like adding another app store to my system, while AppImage is just download and run.