No, you can't. That would most certainly involve modifying and then redistributing a modified flatpak, which is certainly not going to fly in the face of binar

No, you can't. That would most certainly involve modifying and then redistributing a modified flatpak, which is certainly not going to fly in the face of binary-only proprietary software like the one most likely to benefit from a stable ABI over the years. Not to mention, flatpak would still add nothing. Just additional annoyances.