This is a problem for sure. I don't care what writes the code, but if I commit it or approve the merge, I need to be able to explain it, full stop. I don't need

This is a problem for sure. I don't care what writes the code, but if I commit it or approve the merge, I need to be able to explain it, full stop. I don't need go line by line, just point and explain this does this does that which leads to that. If "can you explain this?" is a question a direct report has to put into a prompt, they are failing at their job.