Baseline (Widescreen) Solution & Issues
Ultra/Super-Wide (21:9/32:9) Specific Solution & Issues
Ultrawide support was added in a game update, however, it is limited to 21:9 and pillarboxes some of the cutscenes to 16:9.
Rose's fix allows to enable the game to support any resolution and it also removes the black bars from the cutscenes.
Alternatively, use the Lazy Aspect Fix, though it does not fix the cutscenes and does not support the DirectX 12 mode. One benefit is that it does not require disabling the anti-cheat, though both are expected to work online.
Eyefinity / Surround Specific Solution & Issues
See the ultra-wide solutions.
4k UHD Specific Solution & Issues