Thanks for sharing this suggestion. The good news is that this type of experience is already supported through Advanced ChatGPT Voice on mobile.
You can enable it by going to Settings → Voice → Advanced. Once Advanced Voice is turned on, you can start a voice conversation and use the camera option to show ChatGPT what you’re looking at in real time.
That means you can point your camera at things like an outfit, drawing, object, color, or your surroundings and ask questions about them while continuing the conversation naturally.
Let me know once you find it.
-Mark G.