Fwiw: consider this regarding the Ni mind.
I don't focus solely on the interviews because i know all too well how much can be faked in this manner. I can't tell you how many people i've met that acted mousy, but then slapped their kids around hard screaming and yelling, or people who act really confident who have no self-esteem. Very often the facade is the person's exact opposite. Yes, mannerisms and statements in interviews have relevance, but it is only one small piece in the larger puzzle. What I look at more is what their life would require of them and how they interact with those demands. Fwiw, my entire life is surrounded by artists of every personality type and expression. It'd be harder for me to pinpoint various types as they present in medicine or something, but artists are my point of reference.
Frankly, i think an artist that uses the word "fake" too much is more likely a fake than anything.