8-10x?! That's quite weird if you ask me.
I just used Claude recently. Helped me with an obscure library and with the hell that is JWT + OAuth through the big vendors. Definitely saved me a few hours and I am grateful, but those cases are rare.
I developed things which i would have never started without AI because i could see upfront that there would be a lot of mundane/exhausting tasks
Amusingly, lately I did something similar, though I still believe my manual code is better in Elixir. :)
I'm open to LLMs being a productivity enabler. Recently I started occasionally using them for that as well -- sparingly. I more prefer to use them for taking shortcuts when I work with libraries whose docs are lacking.
...But I did get annoyed at the "programming as a profession is soon dead!" people. I do agree with most other takes on LLMs, however.