Gsync monitors refresh from 1-144hz; Gsync compatible monitors typically have a variable refresh rate of 48-144.
48 to 144 doesn’t mean they won’t work if you’re only getting 40fps, but you will possibly get a flicker in Gsync mode below 48. Just turn the Gsync feature off on the actual monitor.
Gsync and Freesync turned off works fine on fs2020. If you have an Nvidia GpU and an full Gsync monitor, Gsync off works fine also.
Ornaryox has a full Gsync module/chip monitor and can leave Gsync enabled in Nvidia control panel.
Anyone who has screen flickering using a Nvidia GPU, turn off Freesync/Gsync; on the monitor. Micro stutter is all FS2020 settings related AND software optimisations; lots of detail and realistic visuals equals quality of smoothness hits. Regardless if you a robust internet connection, latest and greatest system with a $1000 graphics card and latest gen cpu.
Most just have to do some tweaking depending on what aircraft you fly and where you fly. High altitude, low, metropolitan/cities, or a variety.