So, few days ago I installed some updates and nothing seemed broken.
Fast forward to today when I shut my system down and later started it up again and things have changed:
- GSYNC is turned back on, despite being forced off by me previously because it introduced flickering.
- 120 and 144Hz are not selectable anywhere
- xrandr -q no longer lists 120 and 140Hz as supported for the primary monitor
The ideal configuration is/was:
1920x1080@60Hz + 2560x1440@144Hz + 1920x1080@60Hz