More information on fake backend noise models

[jyu00]

URL, if applicable

https://docs.quantum.ibm.com/guides/local-testing-mode
https://docs.quantum.ibm.com/guides/debug-qiskit-runtime-jobs

Describe the new content you are requesting.

The 2 pages linked above use noise models from real backends. However, neither page points out that this noise model is only an approximation of the actual errors one would encounter on the real device. The actual errors are usually more severe, so noisy simulation here is more of a best case scenario.

It'd also be helpful to mention what kind of errors are included when initializing a noise model from a backend. Qiskit Aer docs have a pretty good description on that, so maybe it just needs to be linked.

If this new content request is accepted, do you want to write the content?

I only want to review the material when it's finished