Edge w/Auto

$nameSpaceName="root\cimv2\mdm\dmmap"
$className="MDM_AssignedAccess"
$obj = Get-CimInstance -Namespace $namespaceName -ClassName $className
Add-Type -AssemblyName System.Web
$obj.Configuration = [System.Web.HttpUtility]::HtmlEncode(@"
<?xml version="1.0" encoding="utf-8" ?>
                 <AssignedAccessConfiguration
                     xmlns="http://schemas.microsoft.com/AssignedAccess/2017/config"
                     xmlns:r1809="http://schemas.microsoft.com/AssignedAccess/201810/config"
                     xmlns:v3="http://schemas.microsoft.com/AssignedAccess/2020/config"
                 >
                     <Profiles>
                         <Profile Id="{56650009-d4c8-4846-9e48-9fda08f97412}">
                             <AllAppsList>
                                 <AllowedApps>
                                     <App DesktopAppPath="C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" r1809:AutoLaunch="true" />
                                     <App AppUserModelId="Microsoft.ZuneVideo_8wekyb3d8bbwe!Microsoft.ZuneVideo" />
                                 </AllowedApps>
                             </AllAppsList>
                             <r1809:FileExplorerNamespaceRestrictions>
                                <v3:NoRestriction />
                             </r1809:FileExplorerNamespaceRestrictions>
                             <StartLayout>
                                 <![CDATA[<LayoutModificationTemplate xmlns:defaultlayout="http://schemas.microsoft.com/Start/2014/FullDefaultLayout" xmlns:start="http://schemas.microsoft.com/Start/2014/StartLayout" Version="1"
                 xmlns="http://schemas.microsoft.com/Start/2014/LayoutModification">
                   <LayoutOptions StartTileGroupCellWidth="6" />
                   <DefaultLayoutOverride>
                     <StartLayoutCollection>
                       <defaultlayout:StartLayout GroupCellWidth="6">
                         <start:Group Name="">
                           <start:DesktopApplicationTile Size="2x2" Column="0" Row="0" DesktopApplicationID="MSEdge"  />
                         </start:Group>
                       </defaultlayout:StartLayout>
                     </StartLayoutCollection>
                   </DefaultLayoutOverride>
                 </LayoutModificationTemplate>
                                 ]]>
                             </StartLayout>
                             <Taskbar ShowTaskbar="true"/>
                         </Profile>
                     </Profiles>
                     <Configs>
                         <Config>
                             <Account>Applicant</Account>
                             <DefaultProfile Id="{56650009-d4c8-4846-9e48-9fda08f97412}"/>
                         </Config>
                     </Configs>
                 </AssignedAccessConfiguration>
"@)
Set-CimInstance -CimInstance $obj