The quality lead gets an index of everything an audit has asked to see: each request linked to the document that answers it, its version and owner, the records found and the gaps. The quality owner decides what is shared; nothing is certified or sent.
When someone is leaving or changing role, their manager gets an interview guide aimed at what only that person knows, then a handover document the successor can work from, every point traced to the conversations and marked with how sure it is. Nothing is shared until the manager approves.