Yes - exactly. You asked for the original source. I provided the original source. That is what the screen shot was of that you continued to question the authenticity of so the actual, original post was provided to you.
I’m not sure where you have basis to remain confused as to the authenticity of the screen shot. It is clearly genuine, as you have now have definitive proof of the same.
I’m not yet convinced. You are. Drop it. It ends there.