I decided to do my own experiments regarding the difference in page counts depending on the file one uploads to KDP. The file in question is the first 23K words of one of my novels that’s yet to be finished.

HTML

Docx (with Kindle no-indent style)

Docx (Kindle indent style)

Vellum

I actually don’t know if the total “page count” at the bottom affects the overall KENP which is a number that Amazon gives each book as far as pages read. Does a higher page count equal higher KENP and thus higher page reads?