Blender Basic Bevel is Flat - Not Curved Basic scene with mesh cube.  4 parallel outer edges are selected to round the cube.  A bevel is applied but here is no curve to the bevel.
Why? And what tiny settings do I need to correct?  And where are those settings in this massive UI?
You can add bevel segments with the mouse wheel or the segments in the options that pop up bottom left of the view port when you confirm your bevel.  This will make them curved.