Paging library when used inside a nestedscrollview loads all data

Using the below code will solve the issue. Here is the view hierarchy:

<androidx.coordinatorlayout.widget.CoordinatorLayout
    android:id="@+id/coordinator_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <com.google.android.material.appbar.AppBarLayout
        android:id="@+id/appbar_layout"
        android:background="@color/white"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <com.google.android.material.appbar.CollapsingToolbarLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_scrollFlags="scroll|exitUntilCollapsed"
            app:titleEnabled="false">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical">

                <!-- Put here elements that you need above the recycler view -->

            </LinearLayout>

        </com.google.android.material.appbar.CollapsingToolbarLayout>

    </com.google.android.material.appbar.AppBarLayout>
    <!-- RecyclerView -->
    <androidx.recyclerview.widget.RecyclerView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:nestedScrollingEnabled="true"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        android:scrollbars="vertical"
        app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" />

</androidx.coordinatorlayout.widget.CoordinatorLayout>

Note: Be sure that you have given id to CoordinatorLayout and AppBarLayout so that it will retain scroll position on the back stack.

The problem is recyclerview inside nested scrolview. Paging library has nothing to do with it. The behavior would be same if you try to load data on scroll listener of recyclerview.