Downloading all files from URL Folder to local folder

I want to download all contents from a url using Windows 10, like

https://example.com/folder

This folder may contain 100 files, and I want to put them all into

C:\backups

I am going to schedule this script to run once every hour, and I don't want it to download the files that already exists.

I've tried a few scripts, like:

bitsadmin.exe /transfer "test" https://website.com/folder/ C:\backups

Without any success, note: I have a very small experience with batch scripts

You will find a couple of useful PowerShell scripts in the post How to download all files from URL?

Here is one of the two:

$outputdir = 'D:\Downloads'
$url       = 'https://opendata.dwd.de/climate_environment/CDC/observations_germany/climate/daily/kl/recent/'

# enable TLS 1.2 and TLS 1.1 protocols
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12, [Net.SecurityProtocolType]::Tls11

$WebResponse = Invoke-WebRequest -Uri $url
# get the list of links, skip the first one ("../") and download the files
$WebResponse.Links | Select-Object -ExpandProperty href -Skip 1 | ForEach-Object {
    Write-Host "Downloading file '$_'"
    $filePath = Join-Path -Path $outputdir -ChildPath $_
    $fileUrl  = '{0}/{1}' -f $url.TrimEnd('/'), $_
    Invoke-WebRequest -Uri $fileUrl -OutFile $filePath
}