Inserting a section break is like this, and it will automatically generate a blank page. If there is no content after section break, you don't need to insert section break; There should be one at the back, but after inserting section break, there is a blank page in the middle.

There is no text after 1 where "section break-Next Page" is inserted, and a blank page appears.

There is text behind the place where "section break-Next Page" is inserted, and the insertion point is at the end of the page, so there will be no blank page.

There are words behind the insertion place of "section break-Next Page", the words before and after are in an indented paragraph, and the insertion point is at the end of the page, so there will be no blank page, and section break also divides the paragraph into two paragraphs, so the latter paragraph after segmentation also appears indentation.

To get rid of blank pages, you only need to get rid of the difference between odd pages and even pages.