After starting a Master Detail Page app with .netstandard 2.1, the console outputs that Device.OpenUri(Xamarin.Forms) is deprecated and says that we should use Launcher.OpenUri(Xamarin.Essentials) instead.
Instead of creating Device.OpenUri when a new project is started, it should automatically create a Launcher.OpenAsUri call instead.
This should remove the deprecated warning and there goes -1 warning, and it is deprecated for a reason.

Hi @DouglasMarq, you're absolutely right!
Unfortunately, the templates is not something we control. We did however already open an issue with them when we did this change. I have just checked just now, and a fix for this is already merged so this should disappear automatically in the near future whenever Visual Studio is updated.
I will close this for now since it's technically already fixed. If you have any more questions please let us know. Thanks!
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Hi @DouglasMarq, you're absolutely right!
Unfortunately, the templates is not something we control. We did however already open an issue with them when we did this change. I have just checked just now, and a fix for this is already merged so this should disappear automatically in the near future whenever Visual Studio is updated.
I will close this for now since it's technically already fixed. If you have any more questions please let us know. Thanks!