Plan "b" for when ubuntu is no longer a viable/desirable/etc base for kde neon?

Correction: Fedora Kinoite beta and nightly also run a stable base (latest Fedora release) and on top of that the unstable KDE packages

Why not update to the latest stable Ubuntu LTS? Work there can apply to Kubuntu as well.

Or the point release of ubuntu.

I started using Suse Tumbleweed, and I like BTRFS.