Have you tried to use this block? https://moodle.org/plugins/reviews.php?version=12134
Yup, works great on Vanilla Moodle 3.3 even though it says only supported to 3.1. I made a small fix to get the hyperlinks working on the block, but that was a problem in 3.1 as well. I tested it with Quizzes too. The only thing I recommend is to nuke the cache after you install it.