Word 365: Save document in High Quality PDF - page shifts?

Hello,

when I save my Word document as PDF via "Save As" (as Office's built-in PDF solution), the PDF document looks exactly like in Word. So for example the first 5 pages have 29 lines with Times New Roman, font size 12.

However, when I use the Adobe Acrobat PDF maker option, those 5 pages of 29 lines each suddenly become only 4 pages, with the first 3 pages having 30-31 lines each.

I go to the top of Word to the "Acrobat" tab, basic settings, Word tab, check all out.

I would like to use the High Quality from Adobe. But with the current settings, there are page shifts because suddenly "more fits on one page" - from 29 to 30/31 lines.

Question:
What would have to be done in the settings to make the PDF High Quality document look EXACTLY like the PDF simply generated by Word?

I need the High Quality, because of the graphics, the shading etc. which are all not present in the simple PDF variant.

Looking forward to help from you.