[jnsgruk]

Author of the post here, happy to discuss or answer any questions you might have!

[fsflover]

Will Flatpac work without any trouble on Ubuntu in the future?

[jnsgruk]

Flatpak works fine with Ubuntu, it's just not enabled/installed by default. The Flatpak website has some instructions which I just tested successfully:

https://flatpak.org/setup/Ubuntu