I have a 4x4 matrix within JS called world to obj. This matrix I assume from context must be the camera transformations matrix and thus I am trying to extract the rotation from it in radians on x y and z axis.

I have no clue where to start and have tried many things

for context this below image it the camera transformations with no rotation

This second one is with rotation of 1 radian is applied to each axis. it is important to note that this camera is orbiting as well in this example