Which episodes of One Piece are filler? - Anime & Manga Stack Exchange

I want to watch One Piece, but the anime has a lot of filler content not in the manga. I'd rather not watch the filler content and only watch the episodes which are directly related to the plot. To

Is this a COVID-19 reference in Kaguya-sama: Love Is War season 2

One Piece: Episode 1041 : r/OnePiece

One Piece - Collection Eight : Colleen Clinkenbeard

Official episode 1000 epic teaser art for One Piece drawn by

One Piece - Collection Eight : Colleen Clinkenbeard

One Piece School Volume 2, One Piece Wiki

Are any of these One PIece characters based on real people like

One Piece School Volume 2, One Piece Wiki

Should I watch Gin Tama? If yes, then give me reasons and how is

One Piece / Funny - TV Tropes