DCS have inefficient VRAM usage structure. (Especially in multiplayer)
Therefore, It's better to vram headroom be adjusted sufficiently.
In my case, possible to play normally on Growling Sidewinder Server.
My system
RTX3080, Ryzen5 5600, oculus quest 2 link(not air, 80hz 5408x2736, bitrate 350), 36GbRAM
texture medium, terrain texture low, shadow low, cockpit dosplay res 512, msaa x2 , af x4, pd 1.0
I'm setting up conservative for the vram headroom.