Are they talking to ChatGPT, or are they typing? More and more we're seeing that user don't even want to use a phone for phone calls, so maybe a voice interface really isn't the way to go.
Edit: Oh, you wrote "verbal" that seems weird to me. Most people I know certainly don't want to talk to their devices.
My wife paid for ChatGPT and is loving it - she only types to it so far (and sends it images and screenshots), but I've had a go at talking to it and it was much better than I thought.
If I'm alone I don't mind talking if it is faster, but there is no way I'm talking to AI in the office or on the train (yet...)
I struggle to have naturally flowing conversation with an AI for much the same reason people don't use most of Siri's features - it's awkward and feels strange.
As such I can maintain about five minutes of slow pace before giving up and typing. I have to believe others have similar experiences. But perhaps I'm an outlier.
Edit: Oh, you wrote "verbal" that seems weird to me. Most people I know certainly don't want to talk to their devices.