docs: develop (#6515)

Modernize documentation by updating legacy references.
Batch: develop
Files changed: 2
Proposals applied: 2

Author: niels9001

hub/apps/develop/title-bar.md

@@ -18,9 +18,6 @@ See the [Title bar](../design/basics/titlebar-design.md) design article for guid
 > [!div class="nextstepaction"]
 > [See the Windows 11 Fluent Design guidance for title bar](../design/basics/titlebar-design.md)
 
-> [!IMPORTANT]
-> This article shows how to customize the title bar for apps that use the Windows App SDK, either with or without WinUI 3. For apps that use UWP and WinUI for UWP, see [Title bar customization](/windows/uwp/ui-input/title-bar) for UWP.
-
 > [!IMPORTANT]
 > A new [Title bar](../design/controls/title-bar.md) control has been added in Windows App SDK 1.7. It simplifies the process of title bar customization.
 

hub/apps/develop/windows-app-restore.md

@@ -38,7 +38,7 @@ When a user installs a new operating system (OS), and chooses to restore from th
 
 Another key to creating a great experience for your users is ensuring that the app gets installed, and behaves correctly. The best way to do that is with a *packaged* app (see [Deployment overview](/windows/apps/package-and-deploy/)).
 
-A packaged app (either a packaged desktop app or a Universal Windows Platform app) is packaged using MSIX, and it's run inside of a lightweight app container. The packaged app process and its child processes run inside the container; and they're isolated using file system and registry virtualization. It's these aspects of packaging that make installation extremely reliable, and ensure that the app doesn't misbehave or leave registry configuration or app files on the PC when the user uninstalls.
+A packaged app (either a packaged desktop app or a WinUI app) is packaged using MSIX, and it's run inside of a lightweight app container. The packaged app process and its child processes run inside the container; and they're isolated using file system and registry virtualization. It's these aspects of packaging that make installation extremely reliable, and ensure that the app doesn't misbehave or leave registry configuration or app files on the PC when the user uninstalls.
 
 For more info about the benefits of using MSIX for packaging, see [What is MSIX?](/windows/msix/overview).