Display Microsoft 365 Groups owned by a user using the ActiveDirectory module and msExchCoManagedByLink attribute

Get-M365GroupsOwned.ps1

<#
.Synopsis
   Display Microsoft 365 Groups owned by a user.
.DESCRIPTION
   Display modern groups (Microsoft 365 Group, Microsoft Teams, Planner, Viva Engage, etc.) 
   of which the user is an owner. Script requires synchronization of modern groups to the
   operator's Active Directory and the operator has permissions to read user object attributes.
   The script requires the PowerShell module "ActiveDirectory".
.EXAMPLE
   Get-M365GroupsOwned -UserName pvenkman | select DisplayName,Name

    DisplayName             Name
    -----------             ----
    Demo-Staff-Team         Group_9f695aaf-84fc-419d-ad4b-2873be13e74a
    Research Symposium 2021 Group_67909e5b-3f72-411f-84b4-e82581dd3d0f
    Tree Pop Model          Group_6ebbf55d-3e8e-46c6-93cc-08d765005f30
    JUGA 2021               Group_98ec65bd-6585-490f-a13b-5cd5c3e2490b
    JUGA 2020               Group_435ff4c5-03fb-4c6b-8641-9bd0b952f971
    DEPT-JUGA-2019          Group_03512c72-4539-4f3d-8158-d631a2cf2f3a

    Get modern groups owned by the user.

.EXAMPLE
    Get-M365GroupsOwned -UserName pvenkman | Where-Object DisplayName -like '*juga*' | Select-Object DisplayName,Name

    DisplayName    Name
    -----------    ----
    JUGA 2021      Group_98ec65bd-6585-490f-a13b-5cd5c3e2490b
    JUGA 2020      Group_435ff4c5-03fb-4c6b-8641-9bd0b952f971
    DEPT-JUGA-2019 Group_03512c72-4539-4f3d-8158-d631a2cf2f3a

    Display modern groups owned by the user with specific string in the DisplayName.

.INPUTS
Username
.OUTPUTS
Groups
#>
function Get-M365GroupsOwned
{
    [CmdletBinding(SupportsShouldProcess=$true,
                  PositionalBinding=$true)]
    [Alias()]
    [OutputType([String])]
    Param
    (
        [Parameter(Mandatory=$true,
                   ValueFromPipeline=$true,
                   ValueFromPipelineByPropertyName=$true,
                   ValueFromRemainingArguments=$false,
                   Position=0)]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        $UserName
    )

    Begin {
    }
    Process
    {
        if ($pscmdlet.ShouldProcess("Target", "Operation")) {
            $User = Get-ADUser -Identity $UserName -Properties MemberOf
            foreach ( $Group in $User.MemberOf ) {
                if ($Group -like 'CN=Group_*') {
                    $GroupObj = Get-ADGroup -Identity $Group -Properties *
                    if ($GroupObj.msExchCoManagedByLink) {
                        if ( $GroupObj.msExchCoManagedByLink.Contains($User.DistinguishedName) ) {
                            $GroupObj
                        }
                    }
                }
            }   
        }
    }
    End {
    }
}