I have no idea how people visualize writing. I imagine some see writers sitting and plotting through the most amazing things they write. As I've already stated, I believe Most good writing is made subconsciously. That means mostly that good writing emerges as the result of leaning into any narrative.
However, There are so many problems in writing an outline that it basically becomes impossible to think every plot-point through. I believe that plotters are actually lucky exceptions and that, by extension, most amazing works will naturally spawn from talented and experienced writers.