Can Copilot help summarize employee feedback and review data?

My boss asked me to look into whether Copilot can help managers prep for performance reviews. Like, instead of reading through months of feedback and notes manually, could Copilot pull together a summary of key themes from peer feedback, goal progress, and past 1:1 notes? If we keep all of these on Sharepoint, can we prompt Copilot to automatically access and summarize them? Do we need to build something custom for this or are there apps in the M365 ecosystem that already have AI built in for this kind of thing?