Basically, if you don't own a 4K widescreen monitor, the little "Download Output" button to the right of the "Download Input" button is out of the screen.

Although you can horizontally scroll right to find the full button, I think it would be a nicer UI experience if the Output button was just directly below the Input.

Here's an image of what I'm talking about: https://imgur.com/a/sV1Z8Oy