Im told by devs of various renderers that the reason we cant embed things like post production data or custom camera data into our renders is because of the way max saves files.
It would be very useful if we could embed things like camera settings, VFB tonemapping settings and any other custom data we want to, into the metadata of our renders. It would make it easier to revisit projects in future and replicate setups if they have been changed or overwritten.