I'm not sure what this comment is supposed to imply?

Are you bad at code reviews? Is the code you're reviewing fairly standard?

GPT misses nuance. It can't reason while you still can. It certainly can do certain tasks better than you but certainly humans can do better at other tasks (specifically in the creativity side, logic, and when it comes to nuanced thinking). But if you're always focused on being quick (quantity over quality) then yeah, I think GPT could replace you. Otherwise, I don't know how anyone comes to this conclusion.