Right diagonal button bottom vs top

[JLambertazzo]

Was wondering about this and wanted to get some review. Diagonal arrow on the right side of the screen wastes space, especially bad on mobile phones as it really shrinks image previews. But moving it to the bottom may hide it on desktop screens which are wider but shorter.

Any thoughts on this?

[JLambertazzo]

Here are the two examples on mobile

[cviebrock]

I agree that there is wasted space. However, I think this is more to do with the size of the arrows, the padding around them, and the table spacing in general.

Having it in the top-right also gives a symmetry to the entire bingo card.

Of course, this is all subjective. :)

[cviebrock]

I just checked in dev inspector. On the new design, even with the top-right diagonal button, the images are 50x50px on an iPhone SE (screen width 375px). On the old design, they are 35px.