Clarification about ACEScg vs ACES2065-1

Hello guys,

sorry to bother you. But I am confused on this topic.

1- Does the option “write ACES compliant EXR” have anything to do with Primaries ?

image

I suspect it is only changing the metadata… Could anyone confirm ?

2- What is the point in rendering and compositing in ACEScg and then deliver to DI an ACES2065-1(AP0) exr ?

Thanks for your answer,

Chris