Some backup types result in many files. For this reason, you will not find a single link that you can use to download your backup, instead you can download the individual fires directly from your storage, or via SimpleBackups by following these steps.
Step 1: View backup content
Step 2. Click the clipboard icon next to the database you want to download
Step 3. Copy the signed download link from the popup (ensure you allow popups if the browser asks for permission)
Note: this method is helpful when cannot see or find "Click to generate a signed download link"