

Cut the crap. Flatpak uses hardlink from repo where file names are jash of the file itself. The chance of duplication is exactly same as that of duplicate files of same name in same directory.
Flatpak repo grows because we trade uncertainty over abi stability with installing all needed versions of libraries. For abi incompatible builds you could already do that in many distros (versioned soname) but to a lesser extent.
Also I usually do not install nvidia GL with flatpaks that I won’t run on nvidia on hybrid gpu laptops anyway for energy reasons.
Looking ar current scenario it doesn’t seem too far fetched :-(