Plotter here.
I have everything sketched out from beggining to the end of the season (and some stuff from the end of the series itself)... I could probably write the rest of season 1 in my story without sitting back to brainstorm almost anything.
Sometimes i'll even write down sketeches from other season, like i'll just act out a scene by myself and write a chapter of it, and I only intent to actually release that chapter a few YEARS from now... I actually have more than one of these already stored, and in fact, one of my most recent chapters was sketeched from basically the moment i began telling the story in ealry 2020, and only saw it's release at the start of this year.
As for chaotic or calm, I'd say both... Sometimes I write episodes on the vague concept I left a note about from six months back and i'm piecing my notes together as I go along, trying to make a nik of sense.
Other I write in complete quietude as it's a scene i already replayed in my head several times so the dialogue and actions flow effortlesly down.
I also feel like a lot of the 'good' of my writing comes when i edit it, as when that is being done is when I try to make it 'sound smart'... Before that it looks like a lot of 'he says' and 'i say'