For Start Menu See: https://medium.com/@MrNick4B/deploy-a-customized-windows-11-start-menu-8832d90b25b1

1. Customzie the start menu
2. copy the \administrator\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\LocalState\start.bin to the \\k12wds\deploymentshare$\PostDeployFiles\Windows11\StartMenu


Task to add to Install Subsection of Deploy Task Sequence: 

xcopy "%deployRoot%\PostDeployFiles\Windows11\StartMenu\start.bin" "%OSDisk%\Users\Default\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\LocalState\" /y

For cusomizing Task Bar See: https://learn.microsoft.com/en-us/windows-hardware/customize/desktop/customize-the-windows-11-taskbar

GPO to Remove Store from TaskBar: 
User Configuration\Administrative Templates\Start Menu and Taskbar\Do not allow pinning Store app to the Taskbar.

GPO to Remove Chat: 
Computer Configuration\Administrative Templates\Windows Component\Chat. Here you will find only one policy setting, which is “Configures the Chat icon on the taskbar“. Right-click this policy setting and select Edit

Copy customized TaskbarLayoutmodification.xml to C:\Windows\OEM

Add the following to the State Restore Section of Deploy Job under Custom Tasks:

Run PowerShell Script:

%deployroot%\PostDeployFiles\Windows11\Taskbar\Import-Taskbar.ps1

Shouldn't need to run the following as administrator prior to capture: 

cmd /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ /v LayoutXMLPath /d C:\Windows\OEM\TaskbarLayoutModification.xml