Discovered apps is a separate report from the app installation reports. For personal devices, Intune never collects information on applications that are unmanaged. On corporate devices, any app whether it's a managed app or not is collected for this report. The following table shows the expected behavior.

This article provides a list of Defender for Cloud Apps discovered app filters and queries and explains how to work with them.

This article describes the procedure for governing your discovered apps by blocking their usage in your organization.

All discovered devices appear in the device inventory, regardless of device type. The core discovery experience, including device visibility and network authenticated scans, is consistent across supported Defender for Endpoint environments.

Learn how to work with apps discovered by Microsoft Defender for Cloud Apps via Graph API.

Learn how to use Microsoft Defender for Cloud Apps to investigate Microsoft Defender for Endpoint discovered devices, network events, and app usage.

Hi, Is there any valid method of checking the date, when any systems were discovered by SCCM? We are during migration and this would be helpful, to get the date when desktops and laptops were discovered by our new infrastructure.

SCCM/MEM - Check when device was discovered for the first time ...

Describes a behavior that the Microsoft Intune discovered apps list seems to show personal apps on Android work profile devices.