Hi Kat, the ones you can’t see on the right are plugged into a Viewer Node.
That is something that us Node Wrangler (Addon) users do all the time and it comes so natural and automatic to us, we don’t even think about it, that we forget to mention it; SHIFT+CTRL+Left Click connect the first output socket of the selected Node to a Viewer Node. Repeating that it connects the second output to the Viewer Node, etc.
