A desktop publishing application from Microsoft that focuses on page layout and graphic design.
Have you tried Affinity Publisher? It's is free.
You can import and edit your Publisher files, if you first convert them to PDF. See
https://www.affinity.studio/page-layout-software
https://www.affinity.studio/help/get-started-import-pdf/
Affinity Publisher supposedly works similar to Publisher. There are also some YouTube videos that may help.