Are people talking about Nerfs?
Alright, let's check
Oda made Buggy immune to Sword Slashes just so that Luffy fights him & Zoro doesn't end the Arc sooner
Cabaji? Zoro was Injured & went & worsened that Injury & Buggy tried to help too
Sham & Buchi? It was a 2 v 1 & Zoro took 1 hit to protect Usopp & Nami
Hatchan? Check Arlong's Reaction when he saw Zoro's Scar
Ohm? The guy had a Dog help him & they were fighting in his Area full of Traps (Ordeal of Iron)
Foxy Game? Zoro had to Play it without Swords
Ryuma? Zoro fought him without Santoryu
Hody? Zoro fought him Under Water
Killer? Zoro also fought him without Santoryu
Kaido? Oda had to include BM in this Arc just to tell him to Dodge
Just like he had to include Fujitora in Dressrosa Arc just so that Doffy doesn't fight Zoro
Even in Film Gold, Tesoro had to help in Zoro's fight against Dice & forced Zoro to beat the guy Swordsless
And when Oda decides to make Zoro not Nerfed, he makes his Opponents able to survive his Slashes somehow like making Mr .1 Iron, Pica hides in Stone, Logia Users ... etc
Aside from Mr. 1, Kaku remains as the only Fight of Zoro where he was pushed to show his True Power & it was still not an Extreme Diff fight like Luffy vs Lucci
Other than that, Zoro is a Walking Nerfed Character