is one piece episode 834 filler?

In disguise, Brook successfully destroys the portrait of Carmel. Big Mom quickly notices and begins her mental crisis.

However, Brook removes his mask, revealing himself to Big Mom. She recognizes Brook and instead of shrieking, she goes on a blind rampage against the wedding guests.

In retaliation, several of the Big Mom Pirates clash against the Straw Hats. Luffy and Jinbe fight off some of the minor Big Mom Pirates but are becoming overwhelmed.

Pedro also fights, but is attacked by Oven. Oven uses his Devil Fruit power to heat up Pedro's sword, making it too hot to use.