Find Engine.ini
"windows drive"\Users\"username"\AppData\Local\LOTF2\Saved\Config\Windows
and put somewhere in the file separately the systemsettings in brackets and the command text below
no need to make the file "read only", unless you want to keep the flavor text between commands.

[ConsoleVariables]
foliage.LODDistanceScale=3 ; (1)(Scale factor for the distance used in computing LOD for foliage.)
r.ContactShadows.NonShadowCastingIntensity=1 ; (0 constructor)
r.DFDistanceScale=4 ; (1 constructor)(Factor to scale directional light property 'DistanceField Shadows Distance', clamped to [0.0001, 10000]. I.e.: DistanceFieldShadowsDistance *= r.DFDistanceScale. [0.0001,1): shorter distance, 1: normal (default), (1,10000]: larger distance.))
r.Lumen.Reflections.BilateralFilter=0 ; (1 scalability)(Whether to do a bilateral filter as a last step in denoising Lumen Reflections)
r.Lumen.Reflections.GGXSamplingBias=1 ; (0.1 scalability)(Seems to make transparent object inside part reflective side reflect stuff properly instead of being blurry)(No description)
r.Lumen.Reflections.HierarchicalScreenTraces.HistoryDepthTestRelativeThickness=0 ; (0.01)(Distance between HZB trace hit and previous frame scene depth from which to allow hits, as a relative depth threshold.)
r.Lumen.Reflections.MaxRoughnessToTrace=0.5 ; (0.4 scalability)(No description)
r.Lumen.Reflections.SmoothBias=1 ; (0)(Values larger than 0 apply a global material roughness bias for Lumen Reflections, where 1 is fully mirror.)
r.Lumen.TraceDistanceScale=3 ; (1)(Scales the tracing distance for all tracing methods and Lumen features, used by scalability.)
r.MaxAnisotropy=16 ; (8 scalability)(MaxAnisotropy should range from 1 to 16. Higher values mean better texure quality when using anisotropic filtering but at a cost to performance. Default is 4.)
r.MipMapLODBias=-3 ; (0)(Apply additional mip map bias for all 2D textures, range of -15.0 to 15.0)
r.Shadow.CSM.TransitionScale=2 ; (1 scalability)(Allows to scale the cascaded shadow map transition region. Clamped within 0..2. 0: no transition (fastest) 1: as specific in the light settings (default) 2: 2x larger than what was specified in the light)
r.Shadow.DistanceScale=2 ; (1 scalability)(Scalability option to trade shadow distance versus performance for directional lights (clamped within a reasonable range). <1: shorter distance, 1: normal (default), >1: larger distance)
r.Shadow.MaxCSMResolution=2048 ; (2048 scalability)(adjust it to your tastes if you don't want to use virtual shadows, 8192 max, after that it will break shadows, very performance heavy going above 4096, less accurate than virtual shadows)
r.Shadow.Virtual.Enable=1 ; (0 constructor)(Enable Virtual Shadow Maps)
r.Shadow.Virtual.UseFarShadowCulling=0 ; (1 constructor)(If you want to only force max shadows very far away)(Switch between implementing the far shadow culling logic for VSMs)
r.Shadow.Virtual.ForceOnlyVirtualShadowMaps=1 ; (0 constructor)(1 "max" shadows)(If enabled, disallow creation of conventional non-virtual shadow maps for any lights that get a virtual shadow map. This can improve performance and save memory, but any geometric primitives that cannot be rendered into the virtual shadow map will not cast shadows)
r.Streaming.PoolSize=-1 ; (default 1000)
r.ViewDistanceScale=3 ; (1 scalability)(1 is epic, 10 is cinematic, dunno if there are any visual detail gains going above 3)
r.ViewTextureMipBias.Min=0 ; (-2)(works only together r.ViewTextureMipBias.Min r.ViewTextureMipBias.Offset)
r.ViewTextureMipBias.Offset=0 ; (-0.3)(works only together r.ViewTextureMipBias.Min r.ViewTextureMipBias.Offset)
r.VolumetricFog.GridPixelSize=4 ; (8 scalability)(smaller higher quality)
r.VolumetricFog.GridSizeZ=64 ; (128 scalability)(64 little bit more dynamic volumetricfog)
r.VolumetricFog.InjectShadowedLightsSeparately=0 ; (1 scalability)(Whether to allow the volumetric fog feature)
r.VolumetricFog.Jitter=0 ; (1 scalability)(Whether to apply jitter to each frame's volumetric fog computation, achieving temporal super sampling)
r.VolumetricFog.LightFunction.DirectionalLightSupersampleScale=0 ; (2 constructor)(0 makes volumetric fog outside more transparent, dunno what 2 even does differently from 1)

Vanilla vs Custom


right bottom side virtual shadows disabled, the rest still enabled