Word document is displayed different on different systems

Hi,

I've a word document that, when I open it on my local Mac with Office365, has 17 pages. When I export it to a pdf (electronic version) it suddenly become 16 pages as the document is more compressed, which is a strange behaviour. So I tested it on two other platforms, one Windows PC and another Macbook Air, and there the document has also 16 pages and looks like the exported pdf. The same applies for a colleague who also has 16 pages when open it. So the problem seems to be related with my local configuration.

In addition to this strange behaviour, my word version don't open the printing dialog and also exporting a pdf as printable version leads to an error. Excel, for example, opens the printer dialog. 

Anything I can do to fix this issue? It's really annoying and a NO GO that the same document looks different.

I'm using a Macbook Pro M1 with Tahoe 26.2 and Word Version 16.105.3 (26020123)