Spoilers ahead:
That was a great movie, how is this a 1.7? Does nobody realise this entire movie represents how he takes everything straight forward and doesnt think otherwise? People are just mad its a “musical”, its a replica of the first movie just a different environment, and Arthur fleck can “sing”, his singing is a representation of his delusion, could he realistically sing as a regular Arthur fleck? Probably not. The whole movie references the ending, as well as his personality disorder, with Harley Quinnzel as a reminder on how Arthur Fleck takes things straight forward without much thought behind it.