Show All Sharing Options When Sharing to a Zoom Room

By default, your Zoom desktop client will automatically share your whole desktop when you share to a Zoom Room. If desired, you can change your Zoom settings to show you all sharing options if you want to share only a specific file or application.

Open your Zoom desktop client and make sure you're signed in.
Click your initials or profile picture from the top-right corner and then select Settings.
Select Share Screen from the left side menu.
Beneath the "When I share directly to a Zoom Room" header, select Show all sharing options.