What is the point of AI hardware in home computers?

I see common hardware components being sold as AI-featured. They include NPUs, TPUs and "copilot-supported" laptops. Two examples are Ryzen AI and RISC-V AI CPU, which are weaker than GPUs. What can a 400-dollars PC with AI hardware do?

GPT was trained with 25000 during 90 days and used many many terabytes of data. A simple question to AI uses too much power and require a lot of water to cool. A home computer can't handle even 0.1% of it.

It is better to use free online solutions.