KDE Project Banana mentions little about packaging, apart from this:[1]
> Instead of legacy packages we target modern deployment systems such as flatpak and systemd-sysext
I hope they succeed in that respect. Flatpak has the promise of decentralizing distribution. That said, my experience of it so far has been brittle, with things like changing your locale or shell prompt causing your apps to freeze[2]. I hope they make a stable operating system nonetheless, but it is not easy.
[0]: https://news.ycombinator.com/item?id=41407768#41408628