And the open source drivers that do exist (and are far better than the Nvidia open source drivers) are proof that said third parties exist. So the net take away

And the open source drivers that do exist (and are far better than the Nvidia open source drivers) are proof that said third parties exist. So the net take away is that if you are a pragmatic open sourcer then you should buy AMD hardware. And even better support the open source coders who do write these drivers; cash, bug reports, testing, documentation, etc.