No absolutely not. In Resolve specifically, you have nodes that you apply to the video where each node allows for specific settings to be applied as part of the grade. In a true grading session, you dial in the settings for black levels, white levels, contrast, saturation as primaries. Then there's secondaries which start finessing. You can then draw windows/mattes to isolate a specific area or specific color range (think color image where everything is B&W except the red rose/red car/red dress style) to apply the grading. There's also tracking of those windows. There's so much more going into color grading than "apply LUT here". Just look at the control surfaces for Resolve and the number of knobs/buttons/rollers. Would something that just applied LUTs need all of that?
> You know that when you do color grading with apps like Resolve, it is stored in memory as a LUT, right?
Source? That's a very gross oversimplification of what a color session is like. LUTs don't do tracking. LUTs don't do keys. LUTs don't do mattes.
You are doing colorists a disservice if you think grading is just LUTs.