Have you become competent? I.e., are you doing different work than you used to when you felt like you were often in a "state of flow"? Or do you just need less

Have you become competent? I.e., are you doing different work than you used to when you felt like you were often in a "state of flow"? Or do you just need less concentration to do the same work? I was feeling terrible for a while and then I noticed I was doing strictly more difficult work, and faster, but that work had become routine and trivial by now, so the deep focus wasn't needed.