Maintaining Microsoft Purview information sensitivity labels when using Acrobat Sign eSignatures

I have seen that Adobe Acrobat supports Microsoft Purview Information Sensitivity labels: https://experienceleague.adobe.com/docs/document-cloud-learn/acrobat-learning/integrations/microsoftsensitivitylabels.html?lang=en

Data associated with these Purview sensitivity labels is stored within custom document properties in the .docx file and is carried over to the custom document properties of the resulting PDF when saving or printing .docx files as PDFs. The same sensitivity labels may also be managed and added directly using the Adobe Acrobat desktop application, which does support this.

We have an API integration with Adobe Acrobat Sign and have several customers who use Microsoft Purview information sensitivity labels on their documents. Their requirement is to propagate the sensitivity labels of their .docx files into the signed PDFs that are returned from Adobe Acrobat Sign after signature in the same way.

I'm aware that issues may arise in e-signing signing documents if sensitivity labels are used to protect or encrypt documents, but does anyone know if this is supported in Adobe Acrobat Sign in scenarios where documents aren't protected or encrypted before signing?

i.e. Can we send a .docx file document with sensitivity label data in the document metadata out for signature using Acrobat Sign and get back a signed PDF with that same metadata in the custom properties of the PDF?