Which type of data does a Google Analytics 4 property generally collect from its data streams?

The reason user behavior and interactions are the primary focus of data collected from data streams in a Google Analytics 4 property is that GA4 is designed to track how users engage with a website or app. This includes various metrics like page views, clicks, scroll depth, events, and session duration, which collectively provide insights into user engagement and behavior during their interactions.

By understanding user behavior, businesses can analyze patterns, optimize user experience, and make data-driven decisions that enhance overall performance. This approach emphasizes event-based tracking, which captures specific interactions, making it possible to gain a comprehensive view of how users navigate and interact with content.

In contrast, while user demographics do provide useful insights into the audience, they are not the central focus of the data streams in GA4. Page performance typically refers to metrics related to loading times or site speed, which are important but secondary to user engagement data in this context. SEO metrics, while essential for understanding search performance and visibility, are not directly collected by GA4's data streams as they focus more on direct interactions rather than search engine rankings or traffic sources.