hi looking for some things u learnt that helped u win more gunfights as u played the game more. less common tips that not everybody may know dont need to be told "crosshair placement" or "hit heads" for the 100th time

I was wondering when jumping around double satcheling should I still be holding W in mid air while strafing? (I am used to CS GO Straftring where you cannot touch W) and should I be crouching?