is one piece episode 890 filler?

On a certain island, the Guardians prowl around near its shore, and they look at the ruined buildings close to them. Blackback is impatient as he waits for Nekomamushi to return with Marco, but Roddy reminds him that they cannot go where their ruler is to avoid scaring the residents.

Behind a nearby waterfall is a small blissful village where Marco works as a doctor, and he uses his phoenix flames to heal a pet sphinx named Tama. Marco was once the First Division Commander of the Whitebeard Pirates, whose captain, Whitebeard, treated his crew like his own sons.