Yep, me too-- I make a pretty killer chicken piccata by reducing my homemade bone broth down into a glace de viande for the sauce.
Another reason why I had a bone to pick (heh) with the Kettle & Fire brand bone broth-- it didn’t offer an unsalted or low-sodium version. So it can’t be reduced at all. Also, I often make soups with added soy sauce, fish sauce or other flavorings with added sodium. For that reason I never add salt to the stock / bone broth I make, and I only ever buy low-sodium or unsalted commercial stock / broth.