diff --git a/src/libraries/System.Diagnostics.Tracing/tests/BasicEventSourceTest/ActivityTracking.cs b/src/libraries/System.Diagnostics.Tracing/tests/BasicEventSourceTest/ActivityTracking.cs
index 398f13a64be4b5..d467ed3a7e5180 100644
--- a/src/libraries/System.Diagnostics.Tracing/tests/BasicEventSourceTest/ActivityTracking.cs
+++ b/src/libraries/System.Diagnostics.Tracing/tests/BasicEventSourceTest/ActivityTracking.cs
@@ -52,7 +52,6 @@ public void IsSupported()
         }
 
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/129088", typeof(PlatformDetection), nameof(PlatformDetection.IsAndroid), nameof(PlatformDetection.IsMonoRuntime))]
         public void StartStopCreatesActivity()
         {
@@ -69,7 +68,6 @@ public void StartStopCreatesActivity()
         }
 
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/129088", typeof(PlatformDetection), nameof(PlatformDetection.IsAndroid), nameof(PlatformDetection.IsMonoRuntime))]
         public async Task ActivityFlowsAsync()
         {
@@ -119,7 +117,6 @@ private async Task YieldTwoActivitiesDeep(ActivityEventSource es)
         // the future we might decide it wasn't even desirable to begin with.
         // Compare with SetCurrentActivityIdAfterEventDoesNotFlowAsync below.
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/129088", typeof(PlatformDetection), nameof(PlatformDetection.IsAndroid), nameof(PlatformDetection.IsMonoRuntime))]
         public async Task SetCurrentActivityIdBeforeEventFlowsAsync()
         {
@@ -146,7 +143,6 @@ public async Task SetCurrentActivityIdBeforeEventFlowsAsync()
         // the future we might decide it wasn't even desirable to begin with.
         // Compare with SetCurrentActivityIdBeforeEventFlowsAsync above.
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/129088", typeof(PlatformDetection), nameof(PlatformDetection.IsAndroid), nameof(PlatformDetection.IsMonoRuntime))]
         public async Task SetCurrentActivityIdAfterEventDoesNotFlowAsync()
         {
diff --git a/src/libraries/System.Runtime.InteropServices/tests/System.Runtime.InteropServices.UnitTests/System/Runtime/InteropServices/ComVariantMarshallerTests.cs b/src/libraries/System.Runtime.InteropServices/tests/System.Runtime.InteropServices.UnitTests/System/Runtime/InteropServices/ComVariantMarshallerTests.cs
index 218dab3c2497c6..d6784ce54b0235 100644
--- a/src/libraries/System.Runtime.InteropServices/tests/System.Runtime.InteropServices.UnitTests/System/Runtime/InteropServices/ComVariantMarshallerTests.cs
+++ b/src/libraries/System.Runtime.InteropServices/tests/System.Runtime.InteropServices.UnitTests/System/Runtime/InteropServices/ComVariantMarshallerTests.cs
@@ -17,7 +17,6 @@ namespace System.Runtime.InteropServices.Tests
     public partial class ComVariantMarshallerTests
     {
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public void Null_Marshals_To_Empty()
         {
             Assert.Equal(VarEnum.VT_EMPTY, ComVariantMarshaller.ConvertToUnmanaged(null).VarType);
@@ -25,7 +24,6 @@ public void Null_Marshals_To_Empty()
         }
 
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public void DBNull_Marshals_To_Null()
         {
             Assert.Equal(VarEnum.VT_NULL, ComVariantMarshaller.ConvertToUnmanaged(DBNull.Value).VarType);
@@ -267,7 +265,6 @@ public void Decimal_Marshals_To_DECIMAL(decimal value)
         }
 
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public void Date_Marshals_To_DATE()
         {
             // OLE dates do not have time zones and do not support sub-millisecond precision.
diff --git a/src/libraries/System.Runtime.InteropServices/tests/System.Runtime.InteropServices.UnitTests/System/Runtime/InteropServices/ComVariantTests.cs b/src/libraries/System.Runtime.InteropServices/tests/System.Runtime.InteropServices.UnitTests/System/Runtime/InteropServices/ComVariantTests.cs
index 0ab90b463cc601..d438a121b1d348 100644
--- a/src/libraries/System.Runtime.InteropServices/tests/System.Runtime.InteropServices.UnitTests/System/Runtime/InteropServices/ComVariantTests.cs
+++ b/src/libraries/System.Runtime.InteropServices/tests/System.Runtime.InteropServices.UnitTests/System/Runtime/InteropServices/ComVariantTests.cs
@@ -143,14 +143,12 @@ public void VariantBoolFalse()
         }
 
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public void VTVariantNotSupported()
         {
             Assert.Throws<ArgumentException>("vt", () => ComVariant.CreateRaw(VarEnum.VT_VARIANT, 1));
         }
 
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsBuiltInComEnabled))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public void Unknown_NotSupported()
         {
             UnknownWrapper wrapper = new(new TestObject());
diff --git a/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.indexer.regclass.cs b/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.indexer.regclass.cs
index 3ef564bf89e0f6..e5c3fd3d04a68c 100644
--- a/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.indexer.regclass.cs
+++ b/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.indexer.regclass.cs
@@ -1007,7 +1007,6 @@ namespace ManagedTests.DynamicCSharp.Conformance.dynamic.context.indexer.regclas
     public class Test
     {
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public static void DynamicCSharpRunTest()
         {
             Assert.Equal(0, MainMethod());
@@ -2296,7 +2295,6 @@ namespace ManagedTests.DynamicCSharp.Conformance.dynamic.context.indexer.regclas
     public class Test
     {
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public static void DynamicCSharpRunTest()
         {
             Assert.Equal(0, MainMethod());
diff --git a/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.method.genmethod.regclass.cs b/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.method.genmethod.regclass.cs
index 43a625317651ef..dd937bf73cbdd7 100644
--- a/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.method.genmethod.regclass.cs
+++ b/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.method.genmethod.regclass.cs
@@ -224,7 +224,6 @@ namespace ManagedTests.DynamicCSharp.Conformance.dynamic.context.method.genmetho
     public class Test
     {
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public static void DynamicCSharpRunTest()
         {
             Assert.Equal(0, MainMethod());
@@ -976,7 +975,6 @@ namespace ManagedTests.DynamicCSharp.Conformance.dynamic.context.method.genmetho
     public class Test
     {
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public static void DynamicCSharpRunTest()
         {
             Assert.Equal(0, MainMethod());
diff --git a/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.operator.regclass.cs b/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.operator.regclass.cs
index 17734cbb1c86a8..a318c893e266c4 100644
--- a/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.operator.regclass.cs
+++ b/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.operator.regclass.cs
@@ -680,7 +680,6 @@ namespace ManagedTests.DynamicCSharp.Conformance.dynamic.context.operate.regclas
     public class Test
     {
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public static void DynamicCSharpRunTest()
         {
             Assert.Equal(0, MainMethod());
@@ -719,7 +718,6 @@ namespace ManagedTests.DynamicCSharp.Conformance.dynamic.context.operate.regclas
     public class Test
     {
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public static void DynamicCSharpRunTest()
         {
             Assert.Equal(0, MainMethod());
@@ -1843,7 +1841,6 @@ namespace ManagedTests.DynamicCSharp.Conformance.dynamic.context.operate.regclas
     public class Test
     {
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public static void DynamicCSharpRunTest()
         {
             Assert.Equal(0, MainMethod());
@@ -3497,7 +3494,6 @@ namespace ManagedTests.DynamicCSharp.Conformance.dynamic.context.operate.regclas
     public class Test
     {
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public static void DynamicCSharpRunTest()
         {
             Assert.Equal(0, MainMethod());
diff --git a/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.property.autoproperty.regclass.cs b/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.property.autoproperty.regclass.cs
index 30f0744bd0a6ad..cea956777a0531 100644
--- a/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.property.autoproperty.regclass.cs
+++ b/src/libraries/System.Runtime/tests/System.Dynamic.Runtime.Tests/Dynamic.Context/Conformance.dynamic.context.property.autoproperty.regclass.cs
@@ -259,7 +259,6 @@ namespace ManagedTests.DynamicCSharp.Conformance.dynamic.context.property.autopr
     public class Test
     {
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         public static void DynamicCSharpRunTest()
         {
             Assert.Equal(0, MainMethod());
diff --git a/src/libraries/System.Runtime/tests/System.Runtime.Extensions.Tests/System/EnvironmentTests.cs b/src/libraries/System.Runtime/tests/System.Runtime.Extensions.Tests/System/EnvironmentTests.cs
index fbbcc4068d1446..7921173cee7c0e 100644
--- a/src/libraries/System.Runtime/tests/System.Runtime.Extensions.Tests/System/EnvironmentTests.cs
+++ b/src/libraries/System.Runtime/tests/System.Runtime.Extensions.Tests/System/EnvironmentTests.cs
@@ -94,7 +94,6 @@ public void ProcessPath_Idempotent()
         }
 
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/123011", typeof(PlatformDetection), nameof(PlatformDetection.IsBrowser), nameof(PlatformDetection.IsCoreCLR))]
         [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS | TestPlatforms.Android, "Throws PNSE")]
         public void ProcessPath_MatchesExpectedValue()
         {