I dont think 1 and 2 are that clear cut. We recently started using Codex at work. I never thought it would be able to do even closer to what it has been doing for me in our legacy code base.

But I am not the fan of code it writes most of the times. I want my code to read and behave certain way. I can not submit that code, even if it works, if I can't explain or just don't like it. I then iterate over that code myself or ask AI until it has the shape I agree with.

For my personal side projects I don't care as much what code looks like as long as it works correctly and easily modifiable. But for work, it still remains my responsibility no matter which tool was used.