add more info about scrollview (#5935)

Author: jwmsft

hub/apps/design/controls/scroll-controls.md

@@ -4,7 +4,7 @@ title: Scroll viewer controls
 ms.assetid: 1BFF0E81-BF9C-43F7-95F6-EFC6BDD5EC31
 label: Scrollbars
 template: detail.hbs
-ms.date: 02/26/2025
+ms.date: 10/31/2025
 ms.topic: how-to
 doc-status: Published
 ms.localizationpriority: medium
@@ -28,6 +28,8 @@ Depending on the situation, the scroll viewer's scrollbar uses two different vis
 
 > [!IMPORTANT]
 > WinUI 3 has two different scroll viewer controls available: [ScrollViewer](/windows/windows-app-sdk/api/winrt/microsoft.ui.xaml.controls.scrollviewer) and [ScrollView](/windows/windows-app-sdk/api/winrt/microsoft.ui.xaml.controls.scrollview). Whenever we speak generically about _scroll viewer_ controls, the information applies to both controls.
+>
+> The `ScrollView` control is similar in behavior and usage to the `ScrollViewer` control, but is based on [InteractionTracker](/windows/windows-app-sdk/api/winrt/microsoft.ui.composition.interactions.interactiontracker), has new features such as animation-driven view changes, and is designed to ensure full functionality with [ItemsRepeater](items-repeater.md).
 
 ## Scrolling, panning, and zooming
 
@@ -41,8 +43,8 @@ Use a scroll viewer control to allow _scrolling_, _panning_, and _zooming_ of yo
 
 The scrollbar is conscious of the user's input method and uses it to determine which visualization to display.
 
-* When the region is scrolled without manipulating the scrollbar directly, for example, by touch, the panning indicator appears, displaying the current scroll position.
-* When the mouse or pen cursor moves over the panning indicator, it morphs into the traditional scrollbar.  Dragging the scrollbar thumb manipulates the scrolling region.
+- When the region is scrolled without manipulating the scrollbar directly, for example, by touch, the panning indicator appears, displaying the current scroll position.
+- When the mouse or pen cursor moves over the panning indicator, it morphs into the traditional scrollbar.  Dragging the scrollbar thumb manipulates the scrolling region.
 
 :::image type="content" source="images/conscious-scroll.gif" alt-text="An animation that shows the scroll bar transform from the narrow panning indicator to the traditional thumb when the cursor moves over it.":::