Sure you can download the backups, but I would recommend to download such big downloads with FTP/SFTP and not with your browser, which is no FTP/SFTP - client.
Let's assume, that you use WINDOWS on your computer, then I could recommend to use "
WinSCP" ( a
SFTP client,
FTP client,
WebDAV client and
SCP client for windows. =>
https://winscp.net/eng/download.php ) for example, with which you are able to login as user "
root" on your server, just like you would normally login as "domain-system-user". The difference is, that you are not only able to see ALL folder and files on your server, you can even edit them directly with the built-in text - editor and you are certainbly able to download/upload files and folders.