What kind of camera are you using? I've been trying _hard_ to switch from Lightroom to Darktable and so far I have been failing to even match the output of in-camera JPEG engine of my Canon 5D Mk4... The skin tone is just not there... like it knows what highlights are and what shadows are but loses something in the middle. Well-lit RAW are fine, but when the light is challenging I always get better results in Lightroom or Canon's RAW converter (or even in-camera JPEGs) although that's actually when RAW is supposed to help the most.