Which tool would support teams predominantly use for troubleshooting tickets related to frontend performance?

When troubleshooting tickets related to frontend performance, RUM (Real User Monitoring) is the most suitable tool. RUM is designed to collect real-time performance metrics directly from users' browsers, which allows teams to observe how their applications perform in real-world scenarios. It provides insights into various aspects of user experience, such as page load times, resource loading, and user interactions. This level of granularity is crucial for identifying and resolving issues that affect frontend performance.

In contrast, while other tools like Synthetics and APM (Application Performance Monitoring) provide valuable performance data, they serve slightly different purposes. Synthetics is primarily used for scripted monitoring and can help catch issues before users experience them, but it doesn't reflect real user interactions. APM focuses more on backend performance metrics and traces application requests, which may not capture the specific nuances of the user experience on the frontend.

Datadog RUM Explorer builds upon RUM capabilities by offering a more focused interface for in-depth analysis and troubleshooting, but RUM itself is the fundamental tool that provides the essential data needed to address frontend performance issues. Overall, RUM's ability to showcase user-centric metrics makes it the ideal choice for troubleshooting frontend performance tickets.