I was recently in contact with Eizo and they were able to confirm that this monitor is true 10 bit and does NOT use 8bit +2FRC. That said, I will have to save up for this monitor to give it a try as it is quite expensive. I don't want to copy/paste the email here since it was a direct communication. I hope that this can reduce some of the dithering on my PC with the Nvidia 5070. Knowing Windows and Nvidia though, they will do it just because they can.
Mind you, this monitor is meant for the creative space, hence its price. The response time is not something you'd likely enjoy gaming on, but at this point, if it works, I don't care how bad my FPS games feel.