As a senior engineer I'd much rather hand-hold a junior rather than an LLM. Junior roles aren't going anywhere.

The expectation that LLMs will multiply the output of more experienced engineers is simply ridiculous.

I work in a FAANG on one of the main teams using GenAI. The impact from GenAI we've calculated and that senior leadership is taking decision upon is an overall gain of about 5% velocity on CODING tasks, so about 2.5% on overall tasks.

If you feel like GenAI has overall doubled or tripled your productivity I'm sorry but it's a sign that you suck and are working on incredibly simple problems.