well, there was an academic paper which showed that experienced software engineers thought they were coding faster, but were actually coding slower with LLMs, there is a news story about it here: https://www.yahoo.com/news/experienced-software-developers-assumed-ai-113300764.html
Also, having been a software engineer and moved into business improvement, I also know that people are good at judging how busy they are, but really bad at knowing whether they are meeting business goals. It all very well churning out thousands of lines of code (with or without LLM help) but if you're not writing what you need to, then you're just doing more bad work.
People are also really terrible at estimating risk, and ongoing commitments of time and money.
That's why I ask for metrics. I believe your are an experienced software engineer, but I don't believe that being an experienced engineer is enough to judge whether it's actually helping.