Ultrawide Support (21:9 or wider) is BROKEN.
While it now looks alright since the GUI redesign, running at ultra wide resolutions introduces stutters and weird flickering shadows, especially on the newer (remade) maps like Inferno and it is the most noticeable in "Danger Zone". The error message "Warning: Overflowed CClientRenderablesList group 0" is common once this stutter starts
This applies to all 21:9 systems, no matter which CPU, GPU or <insert hardware type here> you have. Everyone is affected as soon as you run a 21:9 resolution. High resolutions such as 4k or 8k are not affected, only those with a wider aspect ratio than 16:9.
Links:
https://www.youtube.com/watch?v=yJ2q-oHwg60https://steamcommunity.com/app/730/disc ... 888477478/https://steamcommunity.com/app/730/disc ... 490286401/