There are several ways to scroll the viewport in Adobe XD:
Hold down Spacebar and drag with your mouse in the viewport to pan.
On a trackpad, use two fingers to pan the view (you can also pinch/expand two fingers to zoom).
On a Windows touchscreen device, you can use two fingers on the screen in the same way.
Use mousewheel to scroll up/down and Shift-...
I know it's a very simple option but even just underlining the link text is a good way to denote that something is clickable. I would say putting some arrow icons on the right hand side may also work but the text would have to then break over multiple lines with could cause issues.
Very nice design though!