@justAguy You might want to take a look at this example: darktable 3.0 for dummies (in 3 modules)
Getting good results should not be too difficult nor require a lot of work. Then again, it’s never fully automated.
This is almost true. ART and RT give you the option to get close to the tonality of the OOC JPEG. You can also start from scratch (called Neutral profile).