I didn't learn anything new about Georgiou. She was her regular self, although amped up slightly during the exams. Book, yes, we learned more about. Now, that should've occurred during an episode that got to the source of the Burn or something more than this filler episode. They teased multiple things (the Burn, Georgiou's condition) but didn't reveal anything. They tried hiding that with some pretty decent action.
Agreed. While Georgiou's visions seem to increase along with the scenes examining her in sick bay, we're not learning anything new about this subplot. It's interesting to me that the scene that was chosen as a sneak peak for next week was such a revealing one focused fully on this.