Datadog Synthetic Monitoring and Real User Monitoring (RUM) provide critical insights into the effectiveness of test suites by leveraging real user data, allowing teams to identify the most crucial workflows to test, untested actions, and optimize their test suite. The new Test Coverage page offers a comprehensive view of test coverage, enabling users to gauge the overall effectiveness of their testing strategy and pinpoint areas for improvement. By analyzing user action data, Datadog's Test Coverage page helps teams understand which tests are covering key workflows, identify gaps in their testing, and refine existing tests to ensure their application provides the best possible user experience.