Are you trying to figure out how all of the different Microsoft Defender solutions fit together? I too had this problem, and so I created a table, with the new names, the old names and what they all do at a high level.

If you want to compare MS Defender for ID against AAD ID Protection, I have created a separate post.
Download the full size image of this table from here: https://github.com/TomCutting/AzureKloudsShare/blob/main/Toms%20Defender%20Comparison%20Table.png