Battlefield 6 : 2560×1080 (21:9) is incorrectly scaled

Battlefield 6 : 2560×1080 (21:9) is incorrectly scaled, while 3440×1440 works perfectly

When i playing Battlefield 6 , the 21:9 resolution 2560×1080 is rendered incorrectly,

The game appears stretched, the image geometry is distorted, and the aspect ratio is effectively 16:9, even though 2560×1080 is selected.

The next higher ultrawide resolution 3440×1440 works perfectly, with correct ultrawide FOV, geometry, aspect ratio, and HUD positioning.

The issue is specific to the 2560×1080 resolution profile,