I would give more of the benefit to NTs; they simply don't have to develop the skill of explaining their own inner workings to the level of neurodivergent people at a complex level. Often times they can speak in a generality and assume the vast majority of their nuance will be captured by their audience, which is a strategy often validated by other neurotypical people.

There are plenty of neurotypical people talking about their thinking patterns in the form of pop psychology, horoscopes, MBTI, meditation, YouTube/TikTok cultural commentators, etc. It's just not viewed that way because it's viewed as "normal". But earnestly I don't see a difference between a neurotypical person saying their love language is acts of service and an ADHD person telling me that when they talk at length about their special interest with me it's a sign of psychological safety.

A more likely explanation is that they may choose not to show those thoughts to you.

Yep. That is clearly it.