is one piece episode 883 filler?

The Neptune Family walks through the crowd, escorted by Garp, as paparazzi take photos of them. Shirahoshi shows everyone.

However, they are stopped by Sterry of the Goa Kingdom. He was previously a noble in the kingdom and married Princess Nantokanette, but due to the king and prince's mysterious passing, Sterry rose as the king of the Goa Kingdom.

Sabo watches Sterry, remembering that he is Sabo's adopted brother. He recalls when he first met Luffy at the Gray Terminal.