Why yes, when I ask who I am, I am indeed interested in objective truth, or whatever objective truth of the matter may or may not exist. What the relation actually is, between our sense of self, and the-stuff-out-there-in-reality. I don't understand why this seems so outlandish.

It might be more fruitful to ask instead "How is my sens of self generated? - Whatever that may be" and "What work do the self preform - might there an evolutionary advantage for an organism to have a self?"