Why is Burnout Revenge not full screen on Series X?

I'm a little confused by this back on my Xbox One Burnout Revenge was full screen but I got a Series X about two and a half months ago but for some reason with Burnout Revenge it will not go full screen but every other game has no problem at all.

The 1st picture is what it looks like on the series X and the 2nd picture is what it looked like on the Xbox One