Built-in views
Reports include cycle completion, rating distribution, and a 9-box. Filters follow the cycle and the signed-in person's permission.
Who can see reports
The reports permission is separate from editing reviews. Managers typically see their team. HR / Admin sees the site. Employees do not open operational reports unless the matrix grants it.
Power BI
Settings → General can store an https://app.powerbi.com or https://app.powerbi.us embed URL. That is optional. Lists and built-in reports work without it.