diff --git a/src/Microsoft.TestPlatform.Extensions.TrxLogger/TrxLogger.cs b/src/Microsoft.TestPlatform.Extensions.TrxLogger/TrxLogger.cs
index 2518d53e9c..545531f35a 100644
--- a/src/Microsoft.TestPlatform.Extensions.TrxLogger/TrxLogger.cs
+++ b/src/Microsoft.TestPlatform.Extensions.TrxLogger/TrxLogger.cs
@@ -536,7 +536,18 @@ private string SetDefaultTrxFilePath()
         TPDebug.Assert(LoggerTestRun != null, "LoggerTestRun is null");
         TPDebug.Assert(LoggerTestRun.RunConfiguration != null, "LoggerTestRun.RunConfiguration is null");
         TPDebug.Assert(IsInitialized, "Logger is not initialized");
-        var defaultTrxFileName = LoggerTestRun.RunConfiguration.RunDeploymentRootDirectory + ".trx";
+
+        var baseName = LoggerTestRun.RunConfiguration.RunDeploymentRootDirectory;
+
+        if (_parametersDictionary is not null
+            && _parametersDictionary.TryGetValue(DefaultLoggerParameterNames.TargetFramework, out var framework)
+            && !framework.IsNullOrWhiteSpace())
+        {
+            var shortName = Framework.FromString(framework)?.ShortName ?? framework;
+            baseName = baseName + "_" + shortName;
+        }
+
+        var defaultTrxFileName = baseName + ".trx";
 
         return TrxFileHelper.GetNextIterationFileName(_testResultsDirPath, defaultTrxFileName, false);
     }
diff --git a/test/Microsoft.TestPlatform.Acceptance.IntegrationTests/ArgumentProcessorTests.cs b/test/Microsoft.TestPlatform.Acceptance.IntegrationTests/ArgumentProcessorTests.cs
index a7b21ca6d5..0f296846c5 100644
--- a/test/Microsoft.TestPlatform.Acceptance.IntegrationTests/ArgumentProcessorTests.cs
+++ b/test/Microsoft.TestPlatform.Acceptance.IntegrationTests/ArgumentProcessorTests.cs
@@ -18,7 +18,8 @@ public void PassingNoArgumentsToVsTestConsoleShouldPrintHelpMessage(RunnerInfo r
     {
         SetTestEnvironment(_testEnvironment, runnerInfo);
 
-        InvokeVsTest(null);
+        // Don't add --diag, it changes the output and prevents help from showing.
+        InvokeVsTest(null, collectDiagnostics: false);
 
         //Check for help usage, description and arguments text.
         StdOutputContains("Usage: vstest.console.exe");
diff --git a/test/Microsoft.TestPlatform.Extensions.TrxLogger.UnitTests/TrxLoggerTests.cs b/test/Microsoft.TestPlatform.Extensions.TrxLogger.UnitTests/TrxLoggerTests.cs
index 4a1bf95e4f..1847a6ae70 100644
--- a/test/Microsoft.TestPlatform.Extensions.TrxLogger.UnitTests/TrxLoggerTests.cs
+++ b/test/Microsoft.TestPlatform.Extensions.TrxLogger.UnitTests/TrxLoggerTests.cs
@@ -630,6 +630,49 @@ public void DefaultTrxFileShouldCreateIfLogFileNameParameterNotPassed()
         Assert.IsFalse(string.IsNullOrWhiteSpace(_testableTrxLogger.TrxFile));
     }
 
+    [TestMethod]
+    public void DefaultTrxFileNameShouldIncludeFrameworkWhenAvailable()
+    {
+        _parameters.Remove(TrxLoggerConstants.LogFileNameKey);
+        _parameters[DefaultLoggerParameterNames.TargetFramework] = ".NETCoreApp,Version=v10.0";
+        _testableTrxLogger.Initialize(_events.Object, _parameters);
+
+        MakeTestRunComplete();
+
+        var fileName = Path.GetFileName(_testableTrxLogger.TrxFile);
+        Assert.IsNotNull(fileName);
+        Assert.Contains("_net10.0", fileName, $"Expected TFM 'net10.0' in filename but got: {fileName}");
+        Assert.EndsWith(".trx", fileName, $"Expected .trx extension but got: {fileName}");
+    }
+
+    [TestMethod]
+    public void DefaultTrxFileNameShouldWorkWithoutFramework()
+    {
+        _parameters.Remove(TrxLoggerConstants.LogFileNameKey);
+        _testableTrxLogger.Initialize(_events.Object, _parameters);
+
+        MakeTestRunComplete();
+
+        var fileName = Path.GetFileName(_testableTrxLogger.TrxFile);
+        Assert.IsNotNull(fileName);
+        Assert.EndsWith(".trx", fileName, $"Expected .trx extension but got: {fileName}");
+    }
+
+    [TestMethod]
+    public void DefaultTrxFileNameShouldUseRawStringWhenFrameworkCannotBeParsed()
+    {
+        _parameters.Remove(TrxLoggerConstants.LogFileNameKey);
+        _parameters[DefaultLoggerParameterNames.TargetFramework] = "SomeCustomFramework";
+        _testableTrxLogger.Initialize(_events.Object, _parameters);
+
+        MakeTestRunComplete();
+
+        var fileName = Path.GetFileName(_testableTrxLogger.TrxFile);
+        Assert.IsNotNull(fileName);
+        Assert.Contains("_SomeCustomFramework", fileName, $"Expected raw framework string in filename but got: {fileName}");
+        Assert.EndsWith(".trx", fileName, $"Expected .trx extension but got: {fileName}");
+    }
+
     [TestMethod]
     public void DefaultTrxFileNameVerification()
     {