Post Timeskip was absolute dogshit lets be honest here if you enjoyed that shitshow you probably don't take showers.
Even in pretime skip One Piece is very boring and too goofy. Even the good arcs are pretty boring and doesn't get exciting until Water 7, Enies Lobby, Sabaody, Impel Down, and Marine ford which are the only real good arcs in the series.
The rest of the arcs you have to be a real fan of one piece to appreciate.
Postimeskip sucked and completely cemented One Piece's spot outside the top 5. Horrendous arcs like Fishman Island, Punkhazard, Wano, and boring Zou doesn't help with the slow pacing and the constant running from big mom and getting caught.
Whole Cake and Wano had some good moment but were overshadowed by the garbage pacing and random shitty twist, offscreens, and shitty power scaling
I guess haki and strength just randomly disappear as Franky a non-haki user can knock over Big Mom but Luffy's haki'd up fist can't? It's mind boggling.