landscape-layout

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >

    <TextView
        android:id="@+id/textview"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:textAppearance="@style/TextAppearance.MaterialComponents.Headline6"
        android:textColor="?colorPrimary"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@id/navigation_rail"
        app:layout_constraintTop_toTopOf="parent"
        tools:text="@string/nav_rail_label" />

    <com.google.android.material.navigationrail.NavigationRailView
        android:id="@+id/navigation_rail"
        style="@style/Widget.MaterialComponents.NavigationRailView.Colored.Compact"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        app:headerLayout="@layout/nav_header"
        app:labelVisibilityMode="selected"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:menu="@menu/nav_menu"
        app:menuGravity="bottom" />

</androidx.constraintlayout.widget.ConstraintLayout>