No, it was over video. The person was verbally reciting whatever ChatGPT gave to them. Their answers were verbally "I apologize for any inaccuracies, blah blah blah".
I'm sure that some people have hooked up the whisper model so that it can tap a desktop audio out and feed ChatGPT too.
I've never had such experience and it seems very low effort.
In any case there's absolutely no risk of someone passing an interview with ChatGPT on our end because it's about seeing how people think and what they've experienced.