Perhaps I wasn't entirely clear, but AGI isn't expected to be the best at all tasks. The bar is only as compared to a human, which also isn't the best at all tasks.

But you are right that nobody knows how to make them good at even some tasks. Hence why everyone is so concerned about LLMs writing code. After all, if you had "true" AGI, what would you need code for? It is well understood that AGI isn't going to happen. What many are banking on, however, is that AGI can be simulated if LLMs can pull off being good at one task (coding).

> They want to be the first for bragging rights, hype, VC funding, and control.

That's the motivation for trying to create AGI (at least pretending to), but not AGI itself.