I think that there is a bubble but it's shaped more like the web bubble and less like the crypto bubble.
I don't LLM capacities have to reach human-equivalent for their uses to multiply for years to come.
I don't LLM technology as it exists can reach AGI by the simple addition of more compute power and moreover, I don't think adding computer necessarily is going to provide proportionate benefit (indeed, someone pointed-out that the current talent race acknowledges that brute-force has likely had it's day and some other "magic" is needed. Unlike brute-force, technical advances can't be summoned at will).
I think overstating their broad-ness is core to the hype-cycle going on. Everyone wants to believe—or wants a buyer to believe—that a machine which can grow documents about X is just as good (and reliable) as actually creating X.
A machine which can define a valid CAD document can get the actual product built (even if the building requires manual assembly).