Yeah I tried the ubuntu version through Distrobox, which is way more secure. But they have no repo, and it broke apt lol.
Appimages are completely insecure, there are literally no updates. Its a random bundle of libraries, as old as possible to work on every old kernel, and they are just broken by design (see an old post of mine).
There is flatpak packaging work done and I want to learn that and help, as Flatpak is just the best.