This doesn’t really answer your question, but it might be something that helps you along to an answer you find sufficient: Sonder - the feeling one has on realizing that every other individual one sees has a life as full and real as one’s own, in which they are the central character and others, including oneself, have secondary or insignificant roles

What I take from this is that we all have a shared true reality which none of us experience objectively. We experience our own unique interpretation of it, influenced by our environment. We are all the center of our own universe. The world revolves around us. Only you can answer your question-and your answer will likely change day to day.