Even so, they are claiming the vendor must buy the Gsync modules. How do they know that is the case? Maybe Nvidia is building and supplying them the hardware to get Gsync adoption, so they can sell more cards.Honestly I just saw it as a comment that meant "it had to be bought from someone", and it wasn't worded by a lawyer, so they guy mentioned Nvidia. Going off on a tangent on whether Nvidia is the sole supplier is pointless.
In reality, nobody here, nor at AMD, knows.