Honestly, I am a little scarred from snap.
Otherwise I’m agnostic on flatpaks - I’ve used a couple and they’re ok? They just remind me of old windows games that dump all their libraries in a folder with them.
On a modern system the extra space and loss of optimisation is ok, but on older hardware or when you’re really trying to push your system to run something it technically shouldn’t, I can see it being an issue.
Elderly raspberry pi B [✓]
Large portable drive gathering dust [✓]
Guess I’m setting up a locally hosted file server in the near future.