Hi @Gmb! All of your Cameras should have the option for Privacy Zones to be enabled, especially if your other devices had this option available. Although it sounds like your app is already up to date, I recommend removing and reinstalling the Ring app on your mobile device to see if this with obtain that setting.
Visiting your Floodlight Cam in the Ring app, selecting device settings, then selecting privacy settings, should get you to the location in which you can select privacy zones. I hope this helps! 