My stuff is free-stream. Generally gets written in my head when driving or doing other mundane stuff. Then I throw it into Word and see if I have enough to make something out of it.
Then it becomes focused, because it needs work to pull the thing together into a coherent accessible piece that others might want to read.
tbh I am not a proper writer. I do short, sometimes funny pieces. The shorter the better - I find it easier that way.