I am such a person and I've always done 'chain of thought' in a notepad in order to think through complex things, well before LLMs were a thing. There are certainly tasks I can 'one-shot' but I've learned from experience that for some problems that just results in me focusing on irrelevant things.
Curious whether the lack of audible inner monologue is a benefit for you?
I feel like I'm the opposite, where most of my thinking is done in inner English, which feels slow. I.e. as opposed to instantly realizing the result of deep subconscious processing or something, I usually go the slow language way, if you get what I mean.