That’s absolutely not my experience. I struggle to find tasks in my day to day work where LLMs are saving me time. One reason is that the systems and domains I work with are hardly represented at all on the internet.
But it's also utterly failed to handle mundane tasks, like porting legacy code from one language and ecosystem to another, which is frankly surprising to me because I'd have assumed it would be perfectly suited for that task.
But the worst LLMs? One of my personal tests is "write Tetris as a web app", and the worst local LLM I've tried, started bad and then half way through switched to "write a toy ML project in python".
It’s a very useful tool, not magic.