is one piece episode 530 filler?

In the open sea, Gyro remembers the time when he was attacked by the New Fish-Man Pirates and vowing never to return to the Fish-Man Island. On the Noah, Hody Jones turns down the offer from his subordinate Ikaros Much to defeat them and says that he will do it himself.

Meanwhile, on Fish-Man Island, Nami reunites with Luffy and the others. Neptune, the island’s king, appears with his whale and Megalo before them.

When Neptune offers the pirates to go to the Ryugu Palace for a banquet, they accept and depart for the palace.