When I use the example file
icml2022.zip from https://icml.cc/Conferences/2022/StyleAuthorInstructions,
there are no bookmarks shown in any pdf reader. Typically most pdf reader show a table of content as bookmarks left to the pdf, when hyperref is loaded (see How do I create bookmarks with pdfLaTeX?).
How can I change the code to show the bookmarks? Or which packages are in conflict with the bookmarks?