My main use case for Cisco XDR is to collect all the logs from the use cases of how users try to explore and perform their tasks. We are threat hunting to prevent, detect, and respond to threats, collecting from different systems such as M365 and others, correlating them into one central location, and trying to correlate between different kinds of logs to provide whether the alert is a true positive or not.
A simple example of how I used Cisco XDR to connect all these logs and coordinate between different systems is that we have M365 connected to Cisco XDR, as well as browser security connected. Many users use client applications including Outlook, but many use cases go wrong when they are using it via a browser. So what we did was correlate all the source logs from the browser and XDR and try to correlate them with the user's reactions as well as their daily usage. This helps us understand their daily perspective of how they are behaving. Behavioral analysis was easier when we connected all these systems.