Citizen Kane: Classic or Dud?

My first encounter with CK: a Saturday morning cartoon in which Vincent Price plays a ghost obsessed with Rosebud.

― Patriotic Goiter (Alfred, Lord Sotosyn),

Wasn’t that, like, The Real Ghostbusters?

it may have been

^___^

James Agee didn't like it? I was checking the initial critical reception in 1941 and came across that. I checked Agee on Film, and it's only mentioned once, in passing; I found one more specific quote online, but can't find his review (if there is one). All of this sparked by someone writing into the aforementioned cranky baseball writer: "Awhile back you made the point that Citizen Kane began to be considered the greatest movie when an influential critic or two said it was." I was kind of hoping to be able to write in and (gently--he's cranky) correct that--I always thought it received almost unanimously ecstatic reviews--but after investigating a bit, the reception indeed seems to have been somewhat mixed.

Right there, staring me in the face, but nowhere to play it.

https://phildellio.tripod.com/rosebud.jpg