What is the most introverted extrovert?
I believe those with primary Se or Fe are more extroverted, Se first as it fully engages the environment they are surrounded with and Fe second as it engages with people. Te is less out there but can appear assertive and therefore extroverted when decision time comes. Dominant Ne makes the most introverted of extroverts, this means ENTPs and ENFPs. Picking between them I’d say the Ti of ENTPs would appear more reserved than the Fi of ENFPs but both can be appear rather introverted. Obviously it’s an individual thing at the end of the day.