I don't edit RAW too often so haven't invested the time and effort into Darktable. I have been very impressed by digiKam for organization and catalog management though. I refuse to be sucked into another proprietary database (e.g. Lightroom) and utilities like osxphotos made it easy to turn Apple photos into regular files that digiKam serves up nicely. My goal is to have access to the entire 'archive' on my NAS.
I do miss macOS system controls like zooming in and out via touchpad. In general though, I'm not doing a ton of editing and for my large library, digiKam is working nicely. I tried capture1 for editing but it was more than I needed. I'm glad Darktable exists for folks needing raw editing. I wonder if it produces the Fujifilm specific colors as well as C1?