AI is not and most likely will not be a "magic box that meets all your needs" in at least 1000 years unless something insane happens, AI does function approximation, when you scale it up it can do amazing things but you still need human creativity, you still need engineers because it can only output data not act on real-world stuff, you still need data that is generated by humans, you still need to train every model for your specific task, and tasks are infinite.
If we wanted to replace humans we'd have to fully figure out how the human brain works first, for now no one knows how the human brain truly works so how can we claim AI will replace all humans?
In my opinion, AGI is just an acronym pushed by people who have something to gain from mass hysteria, FOMO, and making people feel like "the end is near", AKA, AI influencers and founders who want investors to give them money.
Of course, this doesn't mean everyone who believes in AGI is one of the two, most were probably just fed this narrative and it sounded believable so they just went with it.
These are my two cents, sorry for the wall of text :P, but I just had to say something about what I perceive as an "AI bubble" that generates mass panic for most in order to benefit a few
