Even without AGI, current LLMs will change society in ways we can't yet imagine. And this is both good and bad. Current LLMs are just a different type of automation, not mechanical like control systems and robots, but intellectual. They don't have to be able to think independently, but as long as they automate some white-collar tasks, they will change how the rest of society works. The simple transistor is just a small electronic component that is a better version of a tube, and yet it changed everything in a few decades. How will the world change because of LLMs? I have no idea, but I know it doesn't have to be AGI to cause a lot of upheaval.

They can't even automate chat support the very thing you would think LLMs would be good at. Yet I always end up needing to talk to a person.

The same thing you described that makes LLM great also make them entirely non-deterministic and unreliable for serious automated applications.