I personally don’t know any actuaries willing to risk their career to help a friend pass an exam. Everyone I know is taking the NDAs very seriously, and is too competitive to even want to help out peers.
But in the future there will be a question bank, so this will not be the case forever. There was no way to have everyone take the test the same day during the pandemic. But the CAS could have combined the spring and fall 2020 exams to make a small question bank for this sitting and didn’t.