Share document on screen

Hi,

My old Mac did not have any problems sharing a document from my desk in a Zoom meeting.
My new Mac, has, though.

The function does not seem to be there, when I press "share". Other boxes come up, with Google Drive, Dropbox, OneDrive, Box, etcetera. The cannot help me.
I use Word on a regular basis when writing my documents. I am used to being able to see my opened documents as soon as I click "share", but now there seems to be a "wall" in the way.

How can I pass by this obstacle?
Thank you!