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imo the main reason for a digital photo to look 'digital' is from auto wb settings that result in a weird middle of the road colour temp setting. We're used to the look of film, which was typically daylight balanced + had unique slight colour shifts depending on the specific film in question.
highlight falloff is a meme. use daylight balanced wb and tweak it to warmer/cooler and you'll be getting close to your photos not looking 'digital'.