Is ONE PIECE episode 1034 filler?
Canon No, episode 1034 of ONE PIECE is canon.
#1034
Luffy Defeated! The Straw Hats in Jeopardy?!
ルフィ敗北！麦わらの一味窮地!?
Aired 25 Sept 2022
Mochibayo compiled this list from MyAnimeList's labels, because MyAnimeList's episode data is not reaching us at the moment.