User retention refers to the ongoing utilization of a product or feature. To assess overall retention, it is crucial to establish clear criteria for what constitutes user engagement, such as logging in, accessing a specific page, or performing essential actions. When measuring the retention of a particular feature, it is helpful to consider individuals who have used it at least once. The metrics used in this analysis aim to determine if the feature successfully retains these users. User retention is a reliable and unbiased measure of user behavior, making it a trustworthy and valid indicator.