ADXL355 High precision and VRE

We are considering high-precision angle detection with the ADXL355. I had some questions there, so I will ask them.

Does VRE have temperature characteristics?

Is there a fine characteristic of VRE offset from 0 to 1g?

There is a subtle difference between the X-axis and the Y-axis in VRE measurement. Why is this?

What is the limit value of detection accuracy when the angle detection is narrowed down to ± 14 °?

Is there any other way to improve VRE other than narrowing the LPF bandwidth?

Thank you.