Is ONE PIECE episode 1070 filler?
Canon No, episode 1070 of ONE PIECE is canon.
#1070
Luffy is Defeated?! The Determination of Those Left Behind
ルフィ敗北!? 残された者の覚悟
Aired 30 Jul 2023
Mochibayo compiled this list from MyAnimeList's labels, because MyAnimeList's episode data is not reaching us at the moment.