Hi Omar,
you said you just wanted to understand the workflow.
I would like to understand what you are you looking for if you don’t mind me asking:
What would be your advantage to use a a less precise and limited operation such as a 3D-LUT in Resolve when you can do (and already did) the same operation in Nuke (without baking it into a LUT) and just render out your content with the ODT or your choice?
Best regards,
Daniel