Real User Monitoring (RUM) goes beyond mere metrics to enhance user experiences by providing key insights into areas such as errors, Core Web Vitals, and network performance. Custom Measurements and Customized Timing are new features that allow developers to tailor data collection to the specific needs of their applications, such as tracking domain-specific performance indicators and business-critical actions. These custom metrics empower developers to capture nuanced insights, enabling them to optimize app performance based on unique user behavior and specific workflow needs, which varies significantly across different types of applications. Through these innovations, developers can transform standard RUM into a customizable framework that not only gathers data but also turns it into actionable insights, ultimately improving user experiences by aligning monitoring strategies with business objectives.