is one piece episode 992 filler?

Orochi prepares to execute Momonosuke to damage the enemy morale. He explains to the crowd that Momonosuke was a time traveller who was transported twenty years into the future by his mother, Toki.

The crowd votes on his method of execution. Although Robin, Jinbe, Hyougoro and the other allies are unhappy to see Momonosuke on the cross, they are forced to jeer at him to blend in.

At Onigashima's coast, Law's submarine approaches the back of the island, battling strong currents. The submarine goes up to the surface, then Law creates a Room for his Devil Fruit ability.