Heather I have some new and relevant information regarding the four pages and the videos that should be on them. I discovered this info today, May 3, 2023.
In Google Search Console, the following pages are regularly crawled by Google and show a video indexed with the page. The videos are indexed as "...supplementary content on the page."
/how-to-write-a-letter-on-a-computer-2/
/insert-headers-and-footers-in-libreoffice-writer-the-easy-way/
The following pages are also regularly crawled by Google, but do not show a video indexed with the page. Possibly the video is not displaying when the page is crawled.
/add-or-delete-blank-pages-libreoffice-writer/
/how-to-indent-in-scrivener/
In Big Data Analytics, the video that is on /insert-headers-and-footers-in-libreoffice-writer-the-easy-way/ is listed under Humix > Content. But the page it is embedded on is not listed under Humix > Page.