By default, almost everything should be removed. Available programs are shown in the file Available_Programs_Windows_X. Any changes made to the image are described in autounattend.xml. For an in-depth overview of what is Unattend Windows installation, you can check out this official Microsoft page: Answer files. If, for any reason, Edge is still present (thanks Microsoft), download the Remove-EdgeOnly.exe file and execute it.
Based on UnattendedWinstall
Also used Remove-MS-Edge