SharePoint Online: Web Part Usage Report using PowerShell

#Load SharePoint Online 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"

#Parameters
$SiteURL = "https://crescentintranet.sharepoint.com/sites/Vendors"
$PageServerRelativeURL = "/sites/Vendors/SitePages/About-Us.aspx"

#Setup Credentials to connect
$Cred = Get-Credential

#Setup the context
$Ctx = New-Object Microsoft.SharePoint.Client.ClientContext($SiteURL)
$Ctx.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($Cred.UserName,$Cred.Password)

#Get the page
$Page = $Ctx.Web.GetFileByServerRelativeUrl($PageServerRelativeURL)
$Ctx.Load($Page)
$Ctx.ExecuteQuery()
 
#Get all webparts from the page
$WPManager = $Page.GetLimitedWebPartManager([Microsoft.SharePoint.Client.WebParts.PersonalizationScope]::Shared)
$WebParts = $WPManager.Webparts
$Ctx.Load($WebParts)
$Ctx.ExecuteQuery()
 
#Iterate through all webparts in the page
ForEach($Webpart in $Webparts)
{
    #Get Web part Properties
    $WPProperties = $Webpart.WebPart.Properties
    $Ctx.Load($WPProperties)
    $Ctx.ExecuteQuery()

    #Get Web part Properties    
    Write-Host "Webpart ID: " $Webpart.ID
    Write-host "Title:" $WPProperties.FieldValues.Title
    Write-Host "Hidden: " $WPProperties.FieldValues.Hidden
    Write-Host "Allow Hide: " $WPProperties.FieldValues.AllowHide
    Write-Host "Allow Close: " $WPProperties.FieldValues.AllowClose
    Write-Host "`n"
}

#Parameters
$SiteURL = "https://crescentintranet.sharepoint.com/sites/Vendors"
$PageServerRelativeURL = "/sites/vendors/SitePages/about-us.aspx"

#Connect to SharePoint Online site
Connect-PnPOnline -Url $SiteURL -UseWebLogin

#Get All Web parts from the page
$Webparts = Get-PnPWebPart -ServerRelativePageUrl $PageServerRelativeURL

#Iterate through webparts
ForEach($Webpart in $Webparts)
{  
    #Get Web part properties
    Write-Host "WebPart Id:" $Webpart.Id  
    Write-Host "Title:" $Webpart.WebPart.Title
    Write-Host "Hidden:" $Webpart.WebPart.Hidden
    Write-Host "Allow Hidden:" $Webpart.WebPart.Properties.FieldValues.AllowHide
}

#Parameters
$SiteURL = "https://crescentintranet.sharepoint.com/sites/vendors"

#Connect to SharePoint Online site
Connect-PnPOnline -Url $SiteURL -UseWebLogin
$Page =  Get-PnPClientSidePage -Identity "About.aspx"

#Get webparts from modern page
$WebParts = $Page.Controls
ForEach($Webpart in $Webparts)
{
    Write-Host "WebPart Id:" $webpart.InstanceId  
    Write-Host "Title:" $webpart.Title
}

#Parameters
$SiteURL = "https://crescentintranet.sharepoint.com/sites/vendors"
$CSVPath = "C:\Temp\Webparts.csv"
$WebPartsData = @()

#Connect to SharePoint Online site
Connect-PnPOnline -Url $SiteURL -UseWebLogin

#Get all pages from "Site Pages" library
$SitePages = Get-PnPListItem -List "Site Pages"  

#Iterate through each page
ForEach($Page in $SitePages)
{
    #Get All Web parts from the page
    $Webparts = Get-PnPWebPart -ServerRelativePageUrl $Page.FieldValues.FileRef

    #Iterate through webparts and collect details
    ForEach($Webpart in $Webparts)
    {  
        #Get Web part properties
        $WebPartsData += New-Object PSObject -Property @{
                "PageUrl" = $Page.FieldValues.FileRef
                "WebPart ID" = $Webpart.Id
                "WebPart Title" = $Webpart.WebPart.Title
                "Is Closed" = $Webpart.WebPart.IsClosed                
                "Hidden" = $Webpart.WebPart.Hidden
                "Zone Index" = $Webpart.WebPart.ZoneIndex
                "Allow Hide" = $Webpart.WebPart.Properties.FieldValues.AllowHide
            }       
    }
}
#Export Web part data to CSV
$WebPartsData
$WebPartsData | Export-Csv -Path $CSVPath -NoTypeInformation