For photography and graphic arts, Linux can handle many if not most of the work (I use Digikam and Darktable with great success, for example), yet when it comes to audio for example, it falls short due to a thousand papercuts.
You don't have to be everything to everyone. You just have to satisfy a need.
Yet, Darktable allows me to process my RAWs to a point which I like. Similarly, my audio equipment allows me to create some music which I like, too.
I didn't push Darktable to professional levels, but I believe it can match bigger tools for what I want to do with it. I don't do photo manipulation, for example. Just process RAWs. I expect the same from my audio equipment for my music endeavors.