The constant Uchiha wanking, Sharingan wanking, and Orochimaru-related wanking to the point the rest of the characters became irrelevant was what truly destroyed Shippuden imo. And then the reincarnation and Kaguya bullcrap delivered a coup de grace to the series. At least Oda didn't ruin his worldbuilding, even with all the Joyboy reincarnation horsheshit cause he actually bothered to build it up.
Fucking Kishimoto spent years on Sasuke brooding to the point Hinata's fakeout death in Pain's arc ended up coming out of nowhere for me. And the resolution to that arc felt like Oden being revived, instead it was real instead of a tease like the in raid.
As poorly written post-TS OP is, it still gave us occasional moments of greatness and interesting characters like Law, Doffy, and Kata. Interesting backstories like Linlin, Law, and Doffy. And as a Zoro fan, post-TS is
.
Only good thing I can honestly say about Shippuden is Pain vs Naruto.