Arguably, LLMs - or whatever systems succeed them - are only useful if they are not AGI. Given the evidence already collected about how willing humans are to make these systems "agentive", we pretty well have to worry about the possibility of an AGI using us instead. Even if there's some other logical barrier to recursive self-improvement ("hard takeoff") scenarios.
Thus, I think we can compare them to electricity - a sophisticated technology with a ton of potential, which will take years to fully exploit, even if there are no more fundamental breakthroughs. But also not the solution to every single problem.