Baseline (Widescreen) Solution & Issues
Resolutions are detected in the launcher. Fullscreen mode is always borderless so will scale the in-game resolution to fit if it differs.
Some resolutions may be unlisted (e.g. 4:3 resolutions). Unlisted resolutions will work but be letterboxed to the aspect ratio set in the launcher. Letterboxing can be removed by forcing the resolution with launch option parameters, e.g. -screen-width 1280 -screen-height 960 (the launcher will still show a different resolution but the forced resolution will be used in-game).
Ultra/Super-Wide (21:9/32:9) Specific Solution & Issues
Resolutions are detected in the launcher. HUD is slightly too big.
Loading screen backgrounds are stretched.
Eyefinity / Surround Specific Solution & Issues
Resolutions are detected in the launcher. HUD is gigantic. Chat text is not visible. Some menus are too big (see menu screenshots).
Loading screen backgrounds are stretched.
4k UHD Specific Solution & Issues