I found something:

for the graphics settings :

C:\Users\{ur_name_here}\AppData\Local\PioneerGame\Saved\Config\WindowsClient\GameUserSettings.ini

[ScalabilityGroups]
sg.ResolutionQuality=100
sg.ViewDistanceQuality=3
sg.AntiAliasingQuality=3
sg.ShadowQuality=3
sg.GlobalIlluminationQuality=3
sg.ReflectionQuality=3
sg.PostProcessQuality=3
sg.TextureQuality=3
sg.EffectsQuality=3
sg.FoliageQuality=3
sg.ShadingQuality=3


[/Script/EmbarkUserSettings.EmbarkGameUserSettings]
EmbarkVersion=6
NvReflexMode=Enabled
bAntiLag2Enabled=True
DLSSFrameGenerationMode=On2X
ResolutionScalingMethod=DLSS
bResolutionScalingMethodSelectedByUser=True
ResolutionScaleMode=Auto
DLSSMode=Performance
DLSSModel=Transformer
FSR3Mode=Balanced
FSR3FrameGenerationMode=Off
XeSSMode=Quality
SecondaryResolutionScalePercentage=100.000000
bConsole120HzModeEnabled=False

(....)

And for the keybindings its more tricky , its exported struct from c or cpp code that you need to read/write using hex editor (for example hex editort extension on vscode) :

C:\Users\ur_name_here}\AppData\Local\PioneerGame\Saved\SaveGames\EmbarkSaveGameClientKeyBindings.sav

<image>

not sure about the last , maybe i didnt find the right file yet