To assess the productivity gained by LLMs, Iris Meredith distinguishes between transformative and compositional work:

While work is obviously a very, very complicated thing, a useful lens for the purpose of this essay is to draw a distinction between work which reshapes a raw material into a finished object and work that puts together multiple objects in a way that creates a certain effect in the world. For the sake of having a shorthand, I’ve chosen to call them transformative and compositional work, respectively.

While Iris does not have a particular clear idea of LLMs, Jeremy Keith does:

My own take on this is that transformative work is often the drudge work—take this data dump and convert it to some other format; take this mock-up and make a disposable prototype. I want my tools to help me with that.
But compositional work that relies on judgement, taste, and choice? Not only would I not use a large language model for that, it’s exactly the kind of work that I don’t want to automate away.
Transformative work is done with broad brushstrokes. Compositional work is done with a scalpel.

Personally, I think it depends much more on where you are in the economic value proposition. Are you selling quick-and-dirty cheap stuff? LLMs are great for you. Are you delivering high-assurance, high-quality work? Then you might/should be skeptical of LLMs.