Using Copilot meeting summaries for performance reviews - how?

Our HR team had this idea to use Copilot meeting recaps as input for performance reviews. Like, if a manager had 20 meetings with a direct report over the quarter, couldnt Copilot help surface key contributions and discussion themes? The problem is theres no way to aggregate multiple meeting summaries into something useful for a review. Each recap is a separate thing in each meeting. Has anyone figured out a workflow or workaround for this?