Disclaimer
Flatpak uses OSTree, like Fedora Atomic Desktops (Silverblue, Kinoite etc) and similar to BTRFS snapshots.
So many files are deduplicated and linked, not actually there
https://gitlab.com/TheEvilSkeleton/flatpak-dedup-checker
50GB without
31GB with deduplication
21,4GB with BTRFS compression
Immutability and sandboxing are, and always have been, a meme.
Security is a meme XD just remove your password, what do you got to hide? Lets all be a communist botnet!
Why are you replying to me?
?