Prevent Screen Sharing in Mac Catalyst .Net MAUI

We are developing one application in .Net MAUI for our client and clients needs MAC Desktop app first on demand. There is one functionality we are stuck from weeks that we need to implement Prevent Share Screen Functionality in our app. If user calls through teams, skype, zoom etc we need to blur our screen. So we try so much things but unfortunately not succeeded. We try NSWindowSharingType in Xamarin.Mac and it works there so we need kind of similar thing in Mac Catalyst. Can any one help here? we are in huge problem right now.