Try from this in the game set all linearity to 50 which is 1 to 1 steering ,no dead zones and 100
saturation to 100 to use full amount of travel of what you set degrees of rotation to.
Set environmental to 10(this is the cause of most issues along with degrees of rotation)
Overall force to 40-50 , change to suit
weight 30- 40, change to suit
The steering rotation needs to be 270 in logitech profiler as they tuned the ffb to match the xbox wheel.
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G25 profiler settings that you need to alter
overall effects 100%
spring effect 0%
damper effect 0%
tick enable center spring
set center spring at 0%
untick report combined pedals
tick allow game to change settings.