Clarify default value (#36055)

Author: gewarren

docs/core/project-sdk/msbuild-props.md

@@ -539,12 +539,12 @@ If you specify this property but you set [GenerateDocumentationFile](#generatedo
 
 ### EmbeddedResourceUseDependentUponConvention
 
-The `EmbeddedResourceUseDependentUponConvention` property defines whether resource manifest file names are generated from type information in source files that are co-located with resource files. For example, if *Form1.resx* is in the same folder as *Form1.cs*, and `EmbeddedResourceUseDependentUponConvention` is set to `true`, the generated *.resources* file takes its name from the first type that's defined in *Form1.cs*. For example, if `MyNamespace.Form1` is the first type defined in *Form1.cs*, the generated file name is *MyNamespace.Form1.resources*.
+The `EmbeddedResourceUseDependentUponConvention` property defines whether resource manifest file names are generated from type information in source files that are co-located with resource files. For example, if *Form1.resx* is in the same folder as *Form1.cs*, and `EmbeddedResourceUseDependentUponConvention` is set to `true`, the generated *.resources* file takes its name from the first type that's defined in *Form1.cs*. If `MyNamespace.Form1` is the first type defined in *Form1.cs*, the generated file name is *MyNamespace.Form1.resources*.
 
 > [!NOTE]
 > If `LogicalName`, `ManifestResourceName`, or `DependentUpon` metadata is specified for an `EmbeddedResource` item, the generated manifest file name for that resource file is based on that metadata instead.
 
-By default, in a new .NET project, this property is set to `true`. If set to `false`, and no `LogicalName`, `ManifestResourceName`, or `DependentUpon` metadata is specified for the `EmbeddedResource` item in the project file, the resource manifest file name is based off the root namespace for the project and the relative file path to the *.resx* file. For more information, see [How resource manifest files are named](../resources/manifest-file-names.md).
+By default, in a new .NET project that targets .NET Core 3.0 or a later version, this property is set to `true`. If set to `false`, and no `LogicalName`, `ManifestResourceName`, or `DependentUpon` metadata is specified for the `EmbeddedResource` item in the project file, the resource manifest file name is based off the root namespace for the project and the relative file path to the *.resx* file. For more information, see [How resource manifest files are named](../resources/manifest-file-names.md).
 
 ```xml
 <PropertyGroup>