Hitting NVDA+NumPad 5 (desktop) or NVDA+shift+O (laptop) should tell you what the current object is, and shift into object navigation mode if you're not in it.
Open your keyboard shortcuts document from NVDA help and look through the Object Navigation section.
Brian - Windows 10 Pro, 64-Bit, Version 1809, Build 17763
Puritanism: The haunting fear that someone, somewhere, may be happy.
~ H.L. Mencken