Is there a detailed list of what is lumped under "Other Windows settings"? In particular, I would like to know if it stores changes made to the registry to hide certain "standard" directories/folders in File Explorer. But in general, it would be nice to have a list to determine if there is something in there that I do not want synced.

The link "How does Sync work?" uses the word "some" and that is always a bit fuzzy. And my question about registry changes vs. customization through menu choices is still not clear with the reference to File Explorer.