SharePoint Online: Get All Lists using PowerShell

#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"

#Function to Get all/specific list from site
Function Get-SPOList()
{
    Param
    (
        [Parameter(Mandatory=$true)] [Microsoft.SharePoint.Client.Web] $Web,
        [Parameter(Mandatory=$false)] [string] $ListName
    )
    #Get the Context
    $Ctx = $Web.Context
    
    #Get a single list or All Lists
    If($ListName)
    {
        #sharepoint online get list powershell
        $List = $Web.Lists.GetByTitle($ListName)
        $Ctx.Load($List)
        $Ctx.ExecuteQuery()
        Return $List
    }
    Else
    {
        #sharepoint online get all lists powershell
        $Lists = $Web.Lists
        $Ctx.Load($Lists)
        $Ctx.ExecuteQuery()
        Return $Lists
    }
}

#Parameters
$SiteURL="https://crescenttech.sharepoint.com"

#Setup Credentials to connect
$Cred= Get-Credential
$Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($Cred.Username, $Cred.Password)

#Setup the context
$Ctx = New-Object Microsoft.SharePoint.Client.ClientContext($SiteURL)
$Ctx.Credentials = $Credentials

#sharepoint online powershell get all lists
$Lists = Get-SPOList -Web $Ctx.Web

#Extract List data
$ListCollection = @()
ForEach($List in $Lists)
{
    $ListData = New-Object -TypeName PSObject
    $ListData | Add-Member -MemberType NoteProperty -Name "Title" -Value $List.Title
    $ListData | Add-Member -MemberType NoteProperty -Name "Itemcount" -Value $List.Itemcount
    $ListData | Add-Member -MemberType NoteProperty -Name "BaseTemplate" -Value $List.BaseTemplate
    $ListData | Add-Member -MemberType NoteProperty -Name "Created" -Value $List.Created
    $ListData | Add-Member -MemberType NoteProperty -Name "LastItemModifiedDate" -Value $List.LastItemModifiedDate
    $ListCollection += $ListData
}
#Export List Inventory to CSV
$ListCollection | Export-csv -Path "C:\Temp\list-inventory.csv" -NoTypeInformation

#Call the function to get a List
$List = Get-SPOList -web $ctx.Web -ListName "Documents"
Write-host "Total Number of Items in List:" $List.ItemCount

#Config Variables
$SiteURL = "https://crescenttech.sharepoint.com/"

#Connect to PnP Online
Connect-PnPOnline -Url $SiteURL -Credentials (Get-Credential)

#Get all lists
$Lists = Get-PnPList

#Get List Title, Description and Number of Items
$Lists | Select Title, Description, ItemCount

#Connect to PNP Online
Connect-PnPOnline -Url "https://crescenttech.sharepoint.com" -Credentials (Get-Credential)
    
#Get the List
$List = Get-PnPList -Identity "Documents"

#Get Number of Items in the List
Write-host "Total Number of List Items:"$List.ItemCount