Can page breaks (i.e., each page) in a LibreOffice Writer document be declared as a page break element in a reflowable EPUB 3 export?
A similar inquiry by How to export epub using Page Break as split method in a macro did not resolve my question.
it’s so niche, maybe an example of actual vs expected, and how to reproduce, could help some gurus to step in 
The context can be found at: Including Page Numbers in EPUB with WordToEPUB - The DAISY Consortium
One possible solution is to use DAISY WordtoEPUB (WordToEPUB - The DAISY Consortium) that converts ODT to EPUB. However, currently the free DAISY WordtoEPUB software is Windows platform dependant.