VBA: Word Application.WindowSize event does not work on Mac

Question

I have implemented Word Application.WindowSize event, according to pages

https://learn.microsoft.com/en-us/office/vba/api/word.application.windowsize

and

https://learn.microsoft.com/en-us/office/vba/word/concepts/objects-properties-methods/using-events-with-the-application-object-word

It works great on the Windows platform.

On the Mac platform the WindowSize event is never triggered.

What changes are needed for the WindowSize event to work on Mac?