Obligatory "I Passed" Post
Took the exam at a PSI Test Center today and passed.
I had been preparing for a much more intense exam than I actually received. I felt my exam was very straightforward, and there were only a handful of questions I had to make a judgment on between what "I think" and "what I think ISACA wants".
As others have said, the QAE is key. There are many "questionable" questions in the QAE, but it is the best source for learning ISACA's thinking and the patterns in their questions. The official study guide is good, and a useful resource to have, especially if you want to look up what ISACA has to say about any particular subject in the CRISC domains.
If you meet the experience qualification for the cert, then the official guide and the QAE are all you really need. I also used a handful of other resources from UDEMY and the Peter Gregory books, but honestly they were less useful, and I found myself arguing with "their" answers many times (which is good for helping you think through topics, but kinda frustrating when you're trying to prepare for an exam).
I don't recommend taking the exam before meeting the experience requirement, as you might struggle to understand the "Why?" behind many questions.
Looking forward to making it official once my results are finalized and I can submit my certification application.