There's not really a great framework for GUI apps on Mac/Windows to generically interact with a shared library. DirectX and friends are sort of an anomaly here.

There's not really a great framework for GUI apps on Mac/Windows to generically interact with a shared library. DirectX and friends are sort of an anomaly here. So you'd need somebody to build the tooling for that kind of resource-sharing and convince people to use it (think about similar prior waves where various toolchains became common practice for things like update-checking, installers, etc). And they'd basically have to be doing it out of love-of-the-game, because there's not really any money in it and any time it breaks people would be pissed.