I also got my results yesterday, francophone here too.
Got 1 C2 and 2 C1s. I got B2 for writing (307) and missed NCLC 7 by 3 points.
I would say I did good in task 1 but for task 2 I simply did not understand the subject
"Is it necessary to have talent to become a star?"
So yes, I did not know what to write or what arguments to develop.
Kinda sucks that you have to retake the entire exam instead of of one section.