All front matter (including blank pages) should be numbered with Roman numerals (iv, xi) starting from “i” on the first page. The following pages are counted as front matter pages:
Title Page
Copyright Page
Dedication / Acknowledgments
Table of Contents
Foreword / Prologue
Epigraph (or Quote)
Reviews
However, of the front matter pages, page numbers should only be visible on the following:
https://www.artbookbindery.com/guide/page-numbering
For reference, Asciidoctor PDF considers that the preamble is not a front matter page (by default, this is configurable via theme).