Flatpak is a central repository where an application is installed in a sandbox and cached. It can be updated from that central repository.
Snap is a mounted filesystem containing a repository and is stored locally. It is not sandboxed. It cannot be updated in part but is overwritten in whole. It is distributed by individual app maintainers, not a centralized repository.
Do tell… genuine question, what would you consider 2 significant differeces?
Flatpak is a central repository where an application is installed in a sandbox and cached. It can be updated from that central repository.
Snap is a mounted filesystem containing a repository and is stored locally. It is not sandboxed. It cannot be updated in part but is overwritten in whole. It is distributed by individual app maintainers, not a centralized repository.