LibreOffice-writer 24.5.2 on macOS Intel, my Footer page numbers are only displaying on ODD pages.
Found my answer. This is a document started many months and versions of LibreOffice ago. The first v. 24 I installed had a bug fixed in 24.2.5.2. In opening the document in this version, there were other issues - all fixed in Preferences and Format > Page Style. Bottom line is that there WAS NO PROBLEM, PLEASE DELETE THIS!