This sysprep
doc confirms audit mode can be managed by Unattend or OOBE:
Generalize from Audit Mode
To generalize an image, you have to first boot into Audit Mode. You can boot into Audit Mode using an unattend file or from the Out-Of-Box Experience (OOBE) screen.
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Generalize using unattend
If you use multiple unattend files during your computer deployment, you can add the following settings to your each of your unattend files so Windows Setup will generalize the PC after processing the unattend file.