So the biggest fallout for us was the Start Menu Icons.... I've managed to get this fixed by deploying a startmenulayout.xml that uses the link path instead of the application ID's, Microsoft's fix restores links but not with the original ID's as previous comments so we went back to basics using a link path and it's fixed for our users. In the future if there is upgrades to the software and paths change we will need to update but for now it's good enough and should be until we migrate to Windows 11.
Hope this helps someone in the same situation 🙂
<LayoutModificationTemplate
xmlns:defaultlayout="http://schemas.microsoft.com/Start/2014/FullDefaultLayout"
xmlns:start="http://schemas.microsoft.com/Start/2014/StartLayout"
xmlns:taskbar="http://schemas.microsoft.com/Start/2014/TaskbarLayout" Version="1"
xmlns="http://schemas.microsoft.com/Start/2014/LayoutModification">
<LayoutOptions StartTileGroupCellWidth="6" />
<DefaultLayoutOverride LayoutCustomizationRestrictionType="OnlySpecifiedGroups">
<StartLayoutCollection>
<defaultlayout:StartLayout GroupCellWidth="6">
<start:Group Name="Applications">
<start:DesktopApplicationTile Size="2x2" Column="2" Row="2" DesktopApplicationLinkPath="%programfiles%\Microsoft Office\root\Office16\POWERPNT.EXE" />
<start:DesktopApplicationTile Size="2x2" Column="2" Row="4" DesktopApplicationLinkPath="%programfiles%\Google\Chrome\Application\chrome.exe" />
<start:Tile Size="2x2" Column="0" Row="4" AppUserModelID="Microsoft.CompanyPortal_8wekyb3d8bbwe!App" />
<start:DesktopApplicationTile Size="2x2" Column="0" Row="6" DesktopApplicationLinkPath="%Windir%\Explorer.exe" />
<start:DesktopApplicationTile Size="2x2" Column="0" Row="2" DesktopApplicationLinkPath="%programfiles%\Microsoft Office\root\Office16\OUTLOOK.EXE" />
<start:DesktopApplicationTile Size="2x2" Column="4" Row="4" DesktopApplicationID="Microsoft.SkyDrive.Desktop" />
<start:DesktopApplicationTile Size="2x2" Column="4" Row="2" DesktopApplicationID="MSEdge" />
<start:DesktopApplicationTile Size="2x2" Column="0" Row="0" DesktopApplicationID="com.squirrel.Teams.Teams" />
<start:DesktopApplicationTile Size="2x2" Column="2" Row="0" DesktopApplicationLinkPath="%programfiles%\Microsoft Office\root\Office16\WINWORD.EXE" />
<start:DesktopApplicationTile Size="2x2" Column="4" Row="0" DesktopApplicationLinkPath="%programfiles%\Microsoft Office\root\Office16\EXCEL.EXE" />
</start:Group>
</defaultlayout:StartLayout>
</StartLayoutCollection>
</DefaultLayoutOverride>
<CustomTaskbarLayoutCollection PinListPlacement="Replace">
<defaultlayout:TaskbarLayout>
<taskbar:TaskbarPinList>
<taskbar:UWA AppUserModelID="Microsoft.MicrosoftEdge_8wekyb3d8bbwe!MicrosoftEdge" />
<taskbar:DesktopApp DesktopApplicationLinkPath="%APPDATA%\Microsoft\Windows\Start Menu\Programs\System Tools\File Explorer.lnk" />
</taskbar:TaskbarPinList>
</defaultlayout:TaskbarLayout>
</CustomTaskbarLayoutCollection>
</LayoutModificationTemplate>