Delete entire Hub site structure

function Remove-HubAndSites {
    param (
        [string]$hubsiteUrl,
        $adminConnection
    )

    # Get all sites in the hub
    $sitesInHub = get-pnpHubSiteChild -Identity $hubsiteUrl -Connection $adminConnection -ErrorAction Stop

    # Loop through each site and remove it
    foreach ($site in $sitesInHub) 
    {
        try {
            Remove-PnPTenantSite -Url $site -Connection $adminConnection -Force #-SkipRecycleBin
            Write-Host "Removed site: $($site)"
        } catch 
        {
            Write-Host "Failed to remove site: $($site) - $_"
            throw $_
        }
    }

    # Unregister the hub site
    try {
        Unregister-PnPHubSite -Site $hubsiteUrl -Connection $adminConnection
        Write-Host "Unregistered hub site: $hubsiteUrl"
    } 
    catch 
    {
        Write-Host "Failed to unregister hub site: $hubsiteUrl - $_"
        throw $_
    }
    # Remove the hub site itself
    try 
    {
        Remove-PnPTenantSite -Url $hubsiteUrl -Connection $adminConnection -Force #-SkipRecycleBin
        Write-Host "Removed hub site: $hubsiteUrl"
    } 
    catch 
    {
        Write-Host "Failed to remove hub site: $hubsiteUrl - $_"
        throw $_
    }
}
$adminUrl = "https://contoso-admin.sharepoint.com/"
$PnPClientId = "the PnP Client ID for your app registration"
if($null -eq $adminconn)
{
    $adminconn = Connect-PnPOnline -Url $adminUrl -Interactive -ClientId $PnPClientId -ReturnConnection
}
else
{
    Write-Host "Using existing admin connection" -ForegroundColor Yellow
}

$hubSiteUrl = "https://contoso.sharepoint.com/sites/ANL11855"
# Call the function to remove the hub site and its associated sites
Remove-HubAndSites -hubsiteUrl $hubSiteUrl -adminConnection $adminconn