Perhaps someone can implement a few download/upload clients for Nextcloud Apps.
The Nextcloud Federation is a kind of WebDAV-client.
Perhaps someone can implement e.g. a Microsoft OneDrive client.
Perhaps someone can also implement a wget-client or include it in https://apps.nextcloud.com/apps/flowupload .
Here is an example from Tiny File Manager (GPL). https://github.com/prasathmani/tinyfilemanager
