The default v3.0 module order places
lut 3D before
filmic rgb, but shouldn’t it rather be placed after filmic?
From my understanding I would first get everything straight, i.e. white balance, exposure, contrast, highlights, etc. by using the essential modules (white balance, exposure, …, filmic). At this point I have an image that I find technically good. And if I then want that distorted Polaroid 669-look I would add the lut module after filmic do have colors swapped according to the Polaroid 669 LUT.
Does that make sense?
I tried it out on a bunch of images and I always found the result more convincing if the lut module was placed after filmic rgb.