What's the deal with the "Optional" Flow arrows?

8495225--1130693--Capture.PNG Hey, yeah, so…
Anyways…

While using Visual Scripting, you may notice some of the Nodes have the Green Flow Arrows to hook-up to however in the Graph Inspector it specifically says “You can still get the return value without connecting this port.” And yes, this is true. you can indeed get the values without hooking it up.

So my question is;
What’s the point of those arrows?
Any reason to hook them up? does it run any better or worse?
Is it just a bypass? Even hooked to anything inside?
what’s the deal bruh?

You can either continue to your next action on a flow, or use it for an input only from the return value.