So while collaborating with a colleague we noticed scaling difference between his screen and mine. Due to the virus I've been building story maps at home on my laptop. So when I set the scale I didn't take into account a difference in screen sizes.
Here is on my screen;

But on his it it looks like this;

He suggested zooming in so the map takes up the screen. Here is mine;

His looks way better;

I am using an HP ZBook 15 G3 15.6" display. I think his monitors are 23".
I know when editing you can see how this will look on three different types of screen (monitor, tablet, and phone), but will there be a capability to set the map extent on one screen and that is how it will show up on all?