From document Tutorial: Send push notifications to Xamarin.Android apps using Notification Hubs, we can find that the document was last updated on 12/23/2021 .
And we also could find the note included in above document, just as follows:
The steps documented in this tutorial are for Visual Studio 2017.
So, the documentation is not up to date. You can set the
Android version: (Target framework) field according to your needs.
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