We've already been through this when people a decade ago thought voice was the future of the computer.

When that completely didn't work, we thought that augmented reality was the future of the computer, which also didn't work out.

You need a screen to be able to verify what you're doing (try shopping on Amazon without a screen), which means you also need a UI around it, which then means voice (and by extension agents which also function by conversation) is slower and dumber than the UI, every time.

Meanwhile I have yet to see any brand excited to be integrated with ChatGPT and Claude. Unlike a consumer; being a purely "reasoning-based" agent, they're most likely to ignore everything aesthetic and pick the bottom of the barrel cheapest option for any category. How do you convince an AI to show your specific product to a customer? You don't.