When I talk to people that use copilot to improve their coding workflow, what I often hear is that copilot can replace boilerplate but not any business logic specific to the problem being solved.

It sounds like you have a different experience(copilot is useful for business logic). Do you have maybe any examples of what you mean by "any coding problems"?

Is it similar to what I've heard previously(copilot can replace boilerplate) or have LLMs actually solved business problems for you in code?

There is a difference between interpolation, which the majority of humans are performing daily with coding in private codebases, and genuine extrapolation, which is difficult to prove and difficult to find in high dimensional spaces. LLMs may not be able to easily extrapolate (and when it does it's due to high temperature), but they can interpolate extremely well, and most human growth and innovation today comes from novel interpolations, which are what LLMs are excellent at.

I asked for the strongest example the OP can share in order to evaluate their claim. If it's so obvious to the OP that generalisation is happening then it should be easy to provide a strong example, right?