I certainly wouldn’t look to a biopic for insight into a guy’s humor (as opposed to his life, maybe) though I realize that’s simply what brought up your question. I cannot think of how anyone could ever explain a comic’s humor. Has that ever been done successfully? I suppose there are college courses about that somewhere but I’d rate them with college courses about rock music. I cannot say I understand why people even expend much effort on trying to get a handle on why Kaufman was funny, if they don’t already get him.
I thought Andy was funny. I realize others did not. I do not believe the twain will ever meet or even understand each other.
If you’re simply looking for reassurance that Kaufman was not in the same class as Paulie Shore, who nobody gets, then please believe that they were in no way similar.
I guess this is like my girlfriend trying to understand why I enjoy thrash music or collecting postmarks? I, on the other hand, do not try to understand her appreciation for quilts and dancing. I simply accept that we are strangely different, in a nice way.
Maybe I am unique? Other people read books or see films and identify with different characters. I never do.
Oops, I seem to have wandered from the OP, haven’t I.