I go line-by-line through the code that I wrote (in my git client) before I stage+commit it.
You are doing something wrong. I go line-by-line through my code like 7x faster than I would do it for someone's else code, because I know what I wrote, my own intentions, my flow of coding and all of those details. I can just look at it en passant, while with AI code I need to carefully review every single detail and the connection between them to approve it.