I am using an ultrawide monitor with Forza Horizon 5 with Windows 11. The left and right buttons are in the middle of the screen, instead on the far left and right. It looks like the buttons are hard coded to a 16:9 monitor instead of adjusting to the screen. See the attached picture.
My monitor is a Samsung Odyssey Neo G9 (LS49AG953NNXZA) that is configured that the native resolution of 5120 x 1440. This error has been present for awhile.