Orientation Lock in Landscape mode not working

[JeevaVGeorge]

  <activity
         android:name=".MainActivity"
         android:exported="true"
         android:launchMode="singleTop"
         android:screenOrientation="landscape"
         android:theme="@style/LaunchTheme"
android:configChanges="keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
         android:hardwareAccelerated="true"
         android:windowSoftInputMode="adjustResize">
       
         <meta-data
           android:name="io.flutter.embedding.android.NormalTheme"
           android:resource="@style/NormalTheme"
           />
         <intent-filter>
             <action android:name="android.intent.action.MAIN"/>
             <category android:name="android.intent.category.LAUNCHER"/>
         </intent-filter>
     </activity>

     <activity android:name="com.microsoft.identity.client.BrowserTabActivity"
         android:screenOrientation="landscape"
         android:configChanges="orientation|keyboardHidden|screenSize|smallestScreenSize|screenLayout"
         android:exported="true">
         <intent-filter>
             <action android:name="android.intent.action.VIEW" />
             <category android:name="android.intent.category.DEFAULT" />
             <category android:name="android.intent.category.BROWSABLE" />
             <data
                 android:host="com.xxx.xxxx"
                 android:path="***********************"
                 android:scheme="msauth" />
         </intent-filter>
     </activity>

This is manifest , But still ONLY MSAL screen rendering only in portrait mode