Humans can't write code without bugs either, especially in languages like the one Linux is written in. It's not a binary though, either in terms of how involved

Humans can't write code without bugs either, especially in languages like the one Linux is written in. It's not a binary though, either in terms of how involved the human is in crafting the output and how many bugs are in the code that's getting merged, so I don't think that blanket statements like "AI writes bugs" or "AI finds bugs" are particularly meaningful.