Is ONE PIECE episode 1065 filler?
Canon No, episode 1065 of ONE PIECE is canon.
#1065
The Destruction of the Alliance?! Fire up, the Will of the New Generation!
同盟壊滅!? 燃えろ新世代の意志!
Aired 11 Jun 2023
Mochibayo compiled this list from MyAnimeList's labels, because MyAnimeList's episode data is not reaching us at the moment.