Perhaps being categorised as an anything-overt may be counter to an otrovert.

I suppose non-otroverts feel the need to categorise everything and everyone to help define boundaries, or as is said in the article, a means of selling a book, or another thing for a psychologist to identify as something to work on, change, or even more profitably, worry about!

Put it this way, I don’t think any otroverts woke up one morning with the thought or realisation of being one; they just got on with the day!