Hi zoxks,
BMI088 does not integrate fusion algorithms to output pitch and roll data. If you want to use pitch/roll, you can use BHI360 which is a programmable IMU-based sensor system combining a gyroscope with an accelerometer, integrated 6doF/9doF sensor fusion library.
Sensor Fusion Performance
Static accuracy (Heading, Pitch, Roll)
Dynamic accuracy (Heading, Pitch, Roll)
Calibration time
Orientation stabilization time
2, 2, 2 degrees 7, 2, 2 degrees <1 second 0.2 seconds
BHI360 product page: https://www.bosch-sensortec.com/products/smart-sensor-systems/bhi360
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