Color grading always changes the colors in post anyway. Film movies often looks better than digital to my eyes but i think that is at least partly because color grading did not exist like it does now and there was no push to make every object "pop" by being oversaturated. To me, Film is more likely to give you a single scene in each frame while color graded digital movies often seem to be made of several disparate scenes cobbled together. Movies from the past used less greenscreening in favor of matte paintings which were often included in the scene they were used itself rather than edited in or they were the only shot in the scene. You can make digital film look however you want, even to look like film, but most Netflix shows apparently do not opt for that.