Creativity is odd in that it is somewhat revelatory: it seemingly comes from outside of you. At least for me I need to minimize input (e.g. reading docs, AI chat, etc) in order for this revelation to "manifest" in my mind. I don't have the self control to "pause" in Cursor or other IDEs, so I use Sublime to truly read and wrestle with code.
N.B. this isn't some fanatically held rule...I'll do a whole session in Cursor if I know the task is appropriate for it (e.g. something that is mindless).