All Reflections in Blender are Completely Black in look dev mode This is might be a mistake on my end since I am a near complete beginner at blender. I am trying to experiment with nodes, but all the reflections on the default hdri in look-dev mode show up completely black. Thanks in advance for any help.
I'm posting this only so I can post a screenshot. This is from my copy of blender (2.83) using the same settings you outlined. If all your settings are the identical, it's got to be some kind of bug or problem with your setup. See image:

EDIT - I downloaded your .blend file, changed nothing and took a screenshot. This is what I get - take is as you will: