My Bernina 440 QE 1/4" foot is the same on both sides.
Also, if you put the fabric at the outer edge of the foot, your seam is 1/4". If you put it at the first indent, your seam is 1/8". And if you put the fabric right at the edge of the foot closest to the needle, your seam is 1/16". A good thing to know when you are topstitching purses, totes, clothing, etc.