No but he has sidelined zoro a lot in post skip by introducing characters like law , yamato , kidd , Loki etc.
Eh i would say Law and Loki, the others don't fit his role in the narrative. Like, yeah, Yamato, for example, was strong, but she was just a regular arc strong character not overlapping with zoros role really in the story.
But law and loki were instances where clearly he got sidelined, they served similar roles and had 100000x better backstory and characterization.
Like people need to realize that Oda revealed Law arcs and backstory before WCI, and after WCI and Sanjis arc, people thought Wano was Zoros arc, and after that it wasn't. People said its too late for oda to "waste time" on Backstory and Characterization
Just for us 1 arc after wano to get an insane gripping Loki Flashback and one of the most interesting characterizations
Especially law was such a strict better replacement (and more direct too as a swordsman) he actually was more popular in that period, and he is now in the top 5 while being 4 years of the manga, thats insane