By using either \DocumentMetadata{} or \RequirePackage{pdfmanagement} makes hyperref not know bookmarksdepth anymore.
MWE:
%\DocumentMetadata{lang=en}
\documentclass[a4paper]{scrreprt}
%\RequirePackage{pdfmanagement}
\usepackage{hyperref}
\hypersetup{bookmarksdepth=paragraph}
\begin{document}
\end{document}
Output:
Package hyperref Warning: unknown key bookmarksdepth of module 'hyp' set to
(hyperref) 'paragraph'.
By using either
\DocumentMetadata{}or\RequirePackage{pdfmanagement}makes hyperref not knowbookmarksdepthanymore.MWE:
Output: