Cambridge C1 Advanced (CAE) and C2 Proficiency (CPE) exams have "Use of English" sections that demand real-time grammatical parsing. The audio trains your working memory to hold complex clauses while listening—a crucial skill for the Listening paper’s Part 4 (Multiple Matching).
No, not in the traditional sense.
For advanced English learners aiming for the C1–C2 level, bridging the gap between "knowing" a grammar rule and using it naturally in conversation is a significant challenge. Cambridge’s Advanced Grammar in Use series, particularly the fourth edition by Martin Hewings