List all files in a folder and it's subfolders in SharePoint Online

Get-PnPFolderContents.psm1

If (Get-Module -ListAvailable -Name 'SharePointPnPPowerShellOnline') {
    Import-Module SharePointPnPPowerShellOnline
} 
Else {
    $PnPPInstallStatus = 'False'
}

Function Get-PnPFolderContents {
    param (
        $Credential = (Get-Credential),
        $Domain = (Read-Host -Prompt 'Enter the primary domain name in your 365 tenant (no spaces or TLDs)'),
        $Library = (Read-Host -Prompt 'Enter the name of the SharePoint library you''re working in'),
        $Folder = (Read-Host -Prompt 'Enter the name of the folder you''re working in (e.g. My folder)')
    )
    If ($PnPPInstallStatus -eq 'False') {
        $InstallPnPP = (Read-Host -Prompt 'Would you like to install PnP PowerShell? You cannot continue without installing this module. (Y/N)')
        If ($InstallPnPP -eq 'Y') {
            Install-Module SharePointPnPPowerShellOnline
        }
        If ($InstallPnPP -eq 'N') {
            Write-Warning 'Cannot continue without PnP PowerShell. Exiting.'
            Break
        }
    }
    $siteURL = "https://$Domain.sharepoint.com/sites/Documents/$Library"
    Connect-PnPOnline -Url $siteURL -Credentials $Credential
    $FolderURL = "Documents/"+$Folder
    $folders = Get-PnPFolderItem "$FolderURL" -ItemType Folder
    Write-Output "Contents of $Library/$FolderURL':"
    ForEach($folder in $folders){
        $newFolderURL = $FolderURL+"/"+$folder.Name
        Get-PnPFolderItem -FolderSiteRelativeUrl $newFolderURL -ItemType File
    }
}

Doesn’t work for large folders. Like those with 100000 files in the same directory.

I'm not surprised, this was a quick and dirty solution to a problem at my old workplace. The majority of ths script could be hugely improved.

I no longer have access to a SharePoint instance to test with, but feel free to suggest a solution.