[dinkumthinkum]

What are the obvious equity issues of oral exams? PhD program have oral exams, are they engaging in wrongthink?

One option is to teach some ethics and accountability and have real and immediate consequences for cheating. Make the policies very clear and enforce them. You cannot detect every possible instance of cheating but you can detect many instances, you can test students to determine if they really wrote or could write such code and when they are found, you make examples of them as has been done in previous times. People want to treat literal cheating using ChatGPT as if it is like a calculator and not something fundamentally different.

If you accept this cheating, you may as well not have the class at all nor the degree program.