In my testing it keeps colors consistent, even with all the YUV flavors of Prores and across non-Adobe apps, this was something that i never had any success with from the FFMPG flavours of Prores where only Prores444 could be trusted.
i have also delivered several commercials already with this new Apple certified Prores encoder, and there has been no failures in quality control.Â
So big thumbs up to Adobe and Apple for finally doing the correct thing and making Prores truely crossplatform :-)
Robert