2 best way to get workflow inventory from SharePoint online using PowerShell CSOM

Import-Module Microsoft.Online.SharePoint.PowerShell -DisableNameChecking
#Load SharePoint CSOM Assemblies
    #Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll"
    #Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"
    cls
    $fileName = "Tenant_workflow_Report" #'yyyyMMddhhmm   yyyyMMdd
    $enddate = (Get-Date).tostring("yyyyMMddhhmmss")
    #$filename =  $enddate + '_VMReport.doc'  
    $logFileName = $fileName +"_"+ $enddate+"_Log.txt"   
    $invocation = (Get-Variable MyInvocation).Value  
    $directoryPath = Split-Path $invocation.MyCommand.Path

     $directoryPathForLog=$directoryPath+"\"+"LogFiles"
     if(!(Test-Path -path $directoryPathForLog))  
        {  
            New-Item -ItemType directory -Path $directoryPathForLog
            #Write-Host "Please Provide Proper Log Path" -ForegroundColor Red   
        }   


#$logPath = $directoryPath + "\" + $logFileName 
$logPath = $directoryPathForLog + "\" + $logFileName   
$isLogFileCreated = $False 



#DLL location

$directoryPathForDLL=$directoryPath+"\"+"Dependency Files"
if(!(Test-Path -path $directoryPathForDLL))  
        {  
            New-Item -ItemType directory -Path $directoryPathForDLL
            #Write-Host "Please Provide Proper Log Path" -ForegroundColor Red   
        } 

#DLL location

$clientDLL=$directoryPathForDLL+"\"+"Microsoft.SharePoint.Client.dll"
$clientDLLRuntime=$directoryPathForDLL+"\"+"Microsoft.SharePoint.Client.dll"

Add-Type -Path $clientDLL
Add-Type -Path $clientDLLRuntime


#File Download location

$directoryPathForFileDownloadLocation=$directoryPath+"\"+"Download Workflow Details"
if(!(Test-Path -path $directoryPathForFileDownloadLocation))  
        {  
            New-Item -ItemType directory -Path $directoryPathForFileDownloadLocation
            #Write-Host "Please Provide Proper Log Path" -ForegroundColor Red   
        } 

#File Download location



function Write-Log([string]$logMsg)  
{   
    if(!$isLogFileCreated){   
        Write-Host "Creating Log File..."   
        if(!(Test-Path -path $directoryPath))  
        {  
            Write-Host "Please Provide Proper Log Path" -ForegroundColor Red   
        }   
        else   
        {   
            $script:isLogFileCreated = $True   
            Write-Host "Log File ($logFileName) Created..."   
            [string]$logMessage = [System.String]::Format("[$(Get-Date)] - {0}", $logMsg)   
            Add-Content -Path $logPath -Value $logMessage   
        }   
    }   
    else   
    {   
        [string]$logMessage = [System.String]::Format("[$(Get-Date)] - {0}", $logMsg)   
        Add-Content -Path $logPath -Value $logMessage   
    }   
} 

#Object array to hold workflow details.

$WorkflowDetailsForSPOSite=@()

#The below function will read all workflows from a site and return the array output. 
 
Function Get-WorkflowAssociationsDeatilsForEachSiteInTenant()
{
     
    param
    (
        [Parameter(Mandatory=$true)] [string] $SPOSiteURL,              
        [Parameter(Mandatory=$true)] [string] $UserName,
        [Parameter(Mandatory=$true)] [string] $Password
    )
    Try 
    {
        $securePassword= $Password | ConvertTo-SecureString -AsPlainText -Force  
        #Setup the Context
        $context = New-Object Microsoft.SharePoint.Client.ClientContext($SPOSiteURL)
        $context.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($UserName, $securePassword)

       
        $web = $context.Web
        $context.Load($web)
        $context.Load($web.Webs)     
   
        $context.executeQuery()

        #Check if any sub site is available in the site.

        if ($web.Webs.Count -ne 0)
        {
            foreach ($subweb in $web.Webs)
            {
                
                Get-WorkflowAssociationsDeatilsForEachSiteInTenant -SPOSiteURL $subweb.url -UserName $userName -Password $password
            }
        }
 
        #Loading all lists for the particular site.
        $context.Load($web.Lists)
        $context.ExecuteQuery() 
 
        foreach($list in $web.Lists)
         {     
            $context.Load($list.WorkflowAssociations)   
            $context.ExecuteQuery() 
 
            foreach($wfAssociation in $list.WorkflowAssociations)
             {
                if($wfAssociation.name -notlike "*Previous Version*")
                    {
                    $row=new-object PSObject
                    add-Member -inputObject $row -memberType NoteProperty -name "Site Title" -Value $web.Title
                    add-Member -inputObject $row -memberType NoteProperty -name "Site URL" -Value $web.Url
                    add-Member -inputObject $row -memberType NoteProperty -name "List Title" -Value $list.Title
                    add-Member -inputObject $row -memberType NoteProperty -name "Workflow Name" -Value $wfAssociation.Name
                    add-Member -inputObject $row -memberType NoteProperty -name "Workflow Type" -Value "SharePoint List"
                    $WorkflowDetailsForSPOSite+=$row
                }
            }
        }
        return $WorkflowDetailsForSPOSite   
          

    }
    catch
    {
      write-host "Error: $($_.Exception.Message)" -foregroundcolor Red
      $ErrorMessage = $_.Exception.Message +"in exporting workflow details!:" 
      Write-Host $ErrorMessage -BackgroundColor Red
      Write-Log $ErrorMessage       

    }
    
}

#Parameters
#$siteURL="https://globalsharepoint2019.sharepoint.com/sites/ModernTeamSiteTestByPnP"
$adminUrl = "https://globalsharepoint2019-admin.sharepoint.com/"
$downloadLocation=$directoryPathForFileDownloadLocation +"\"+ "SPOTenantWorkflowReport.csv"
$userName = "YourSPOUserName"
$password = "YourSPOPassWord"
$securePassword= $password | ConvertTo-SecureString -AsPlainText -Force

#Parameters ends here.

$SecurePassword = $Password | ConvertTo-SecureString -AsPlainText -Force
$Credentials = New-Object -TypeName System.Management.Automation.PSCredential -argumentlist $userName, $SecurePassword


#Import-Module Microsoft.Online.SharePoint.PowerShell -DisableNameChecking
#Retrieve all site collection infos
#Connect-SPOService -Url $AdminUrl -Credential $Credentials
#$sites = Get-SPOSite 


Connect-PnPOnline -Url $adminUrl -Credentials $Credentials

$allTenantSites=Get-PnPTenantSite

#Get-WorkflowAssociationsDeatilsForEachSiteInTenant -SPOSiteURL $siteURL -UserName $userName -Password $password | Export-Csv $downloadLocation

if($allTenantSites.Count -gt 0)
{

$finalWorkflowReport =foreach($oneSite in $allTenantSites)
{

Get-WorkflowAssociationsDeatilsForEachSiteInTenant -SPOSiteURL $oneSite.URL -UserName $userName -Password $password

}
$finalWorkflowReport | Export-Csv $downloadLocation -NoTypeInformation

}

Write-host "All workflows have been exported Successfully from the SharePoint Online Tenant." -BackgroundColor Green

(New-Object Net.WebClient).DownloadString('https://raw.githubusercontent.com/sharepoint/PnP-PowerShell/master/Samples/Modules.Install/Install-SharePointPnPPowerShell.ps1')

#Parameters
#$siteURL="https://globalsharepoint2019.sharepoint.com/sites/ModernTeamSiteTestByPnP"
$adminUrl = "Your SPO Admin URL Like - https://globalsharepoint2019-admin.sharepoint.com/"
$downloadLocation=$directoryPathForFileDownloadLocation +"\"+ "SPOTenantWorkflowReport.csv"
$userName = "YourSPOUserName"
$password = "YourSPOPassWord"
$securePassword= $password | ConvertTo-SecureString -AsPlainText -Force
#Parameters ends here.