Android 11 Voice search button doesn't show

In Android 11, when targetSdk is set to 30 and voice search is enabled, the microphone icon doesn't show on the SearchView. However, it works correctly if targetSdk is set to 29. It works on Android 10 devices also with targetSdk 30.
Is there anything extra which needs to be done for 30?

menu.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <item
        android:id="@+id/action_search"
        android:title="Search"
        app:actionViewClass="androidx.appcompat.widget.SearchView"
        app:showAsAction="always" />
</menu>

Manifest.xml

<activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <meta-data
                android:name="android.app.searchable"
                android:resource="@xml/searchable" />

            <intent-filter>
                <action android:name="android.intent.action.SEARCH" />
            </intent-filter>
</activity>

searchable.xml

<searchable xmlns:android="http://schemas.android.com/apk/res/android"
    android:label="@string/app_name"
    android:hint="Search"
    android:imeOptions="actionSearch"
    android:voiceSearchMode="showVoiceSearchButton|launchRecognizer"/>

MainActivity

override fun onCreateOptionsMenu(menu: Menu): Boolean {
        menuInflater.inflate(R.menu.search, menu)

        val searchManager = getSystemService(Context.SEARCH_SERVICE) as SearchManager
        val searchView: SearchView = menu.findItem(R.id.action_search).actionView as SearchView
        val searchableInfo = searchManager.getSearchableInfo(componentName)
        Log.d(TAG, "onCreateOptionsMenu: ${searchableInfo.voiceSearchEnabled}, ${searchableInfo.voiceSearchLaunchRecognizer}")

        searchView.setSearchableInfo(searchableInfo)
        searchView.setIconifiedByDefault(false)
        return super.onCreateOptionsMenu(menu)
    }