I only see a value on .NET apps on Android for those companies planning to do both iOS and Android, or re-using existing .NET code.
For those just targeting Android, specially given the global market share, they are better off with plain Java/Kotlin + NDK, than adding yet another layer to debug and extra APK size.
As I said, in the context of targeting both iOS and Android it makes sense, but OP meant targeting only Android.
And despite my advocacy, when targeting both mobile OSes, customers at enterprise level tend to pick Ionic or pure Web approaches, despite the lower UX.
For those just targeting Android, specially given the global market share, they are better off with plain Java/Kotlin + NDK, than adding yet another layer to debug and extra APK size.