Microsoft documents, and well, each and every keyboard shortcut for virtually every product they make, and definitely for the Office suite programs.
These keyboard shortcuts, and all program-specific keyboard shortcuts, are not NVDA shortcuts and would have no place in the NVDA user guide, as they have nothing whatsoever to do with NVDA (or any screen reader, for that matter).
Brian - Windows 10 Pro, 64-Bit, Version 20H2, Build 19042
Always remember others may hate you but those who hate you don't win unless you hate them. And then you destroy yourself.
~ Richard M. Nixon