How to add featured elements in full layout

Hi all

I just created a new sharepoint site. I noticed that the hero part is covering the whole screen layout and looks very nice.

When I start adding elements, for example an element from Power Apps. It wont be the same size as the one it came with the sharepont.

Here is the hero in full layout:

And below you will see the app added which is very small compared to the hero.

How can I make it bigger in order to cover the full size horizontally?

Thanks.