Your question is Constructive Feedback in Code Reviews. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me about a time you had to give constructive feedback during a code review, or received tough feedback on your own code. Walk me through how you handled it, how you kept the conversation productive, and what changed afterward.