flatpacks falling flat, packing bugs, snaps snapping resources, both suck

> Are you sure the flaw is *fundamental*?

If by "fundamental" you mean "a real pain in the proverbial for the user", then I think it is. Unless you comprehensively think through all use-case scenarios (which imnsho most developers are cognitively incapable of doing) you are going to have quite a horde of users complaining "my use case is broken".

For example, something I do, for very simple and good reasons, is have a humungous load of hard links all over my system. Less so now, but my wife and I took loads of photos (my camera tells me it can only store 1100 photos on the 100GB of flash cards in it ...) so they were all stored in a central area, owned by root (to prevent accidental damage), and linked everywhere they were required. Niche usage, sure, but most apps don't have a clue about that sort of setup. And there'll be plenty of other niche cases out there ...

Cheers,
Wol