There’s a book written by David Lipsky where he followed and interviewed David Foster Wallace (author of Infinite Jest) upon the release of Infinite Jest.
https://en.wikipedia.org/wiki/Although_of_Course_You_End_Up_...
There is also a movie which is faithful to the book.
A key part of how to see if someone is just parotting acceptable opinions vrs is actually having an opinion, is to make them explain it. If its a generic "oh you need to read it, its great" or parotting of popular talking points, that person is not serious about their taste. They use the art as an ornament to make their personalities more interesting than actually engaging with the art in any meaningful way.
The only reaction that matters should be your personal one and what resonates with you.
Also, what is our "Identity" if not the sum of all our influences?
My comment spoke more about how society just drip feeds us influences via marketing and with an external motivation. That means they are screwing with our very identity itself. My point is that curating those influences is important and shaping your own identity instead of basing it on universal acclaim, reviews, "what does the world think/what must be the right way to think".