is one piece episode 864 filler?

Inside the Mirro-World, Katakuri continues attacking Luffy as the latter tries to predict Katakuri's next move. Luffy states that he cannot quite see the future, but Katakuri can.

At the Thousand Sunny, Big mom asks where the cake is. Jinbe tells her that it is not on the ship, but Big Mom disagrees, saying that her son would not lie and if he did, she would have to kill him.

Perospero panics as he realizes she has remembered. Big Mom then uses her Cognac attack.

Jinbe blocks the attack for a while before he is sent flying.