Hi @Ta1835 thank you for your post here on the Zoom Community! There is a setting which allows people to share applications (Chrome Browser, PowerPoint, etc.) but not their entire desktop and I'm thinking maybe this has been enabled. If you are the admin could you please check, if not perhaps you can reach out to your Zoom admin and find out if they turned this setting on?
You can also sign into the Zoom web portal and check your user settings to see if this setting is enabled. Just sign into the Zoom web portal, look for Settings on the left, then in the "In Meeting (Basic)" section you will see Screen Sharing settings
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