Image not not fitting on screen(monogame Sample)

Thats the image of the latest monogame sample I found on dark genesis
you can see that the image is not fitting on the screen.

My phone is LG G2
1080 x 1920 pixels
443 ppi

Specs taken from phoneArena

Just wanna know how to make the image fit the screen on every android phone.

It looks like it is trying to do portrait when the phone is in landscape.