While it may well be true that different kinds of minds function differently, there’s no reason to think that speaking different languages makes you function differently. A native English speaker learning Japanese will make much the same kind of mistakes that a native Japanese speaker learning English will, and pretty much the same circuits will be “primary” and “auxiliary” in both. This contrasts with neurodiversity, and disabilities like dyslexia, where some circuits may be impaired or differently wired.
While it may well be true that different kinds of minds function differently, there’s no reason to think that speaking different languages makes you function differently. A native English speaker learning Japanese will make much the same kind of mistakes that a native Japanese speaker learning English will, and pretty much the same circuits will be “primary” and “auxiliary” in both. This contrasts with neurodiversity, and disabilities like dyslexia, where some circuits may be impaired or differently wired.