How to force download all my iCloud files to my iPad?

I have several folders and dozens of files in iCloud. With the Files app on my iPad, I can see the folders, and I can navigate to each file, and download it to make it accessible offline. But that's a very tedious job with dozens or even hundreds of files. It there a way to download a whole folder at once, or even everything that is in iCloud to my iPad?

The folders in iCloud, accessed through the Files app, show the cloud icon with an arrow, but clicking on the arrow does not download but just opens the folder (?)