Hi Pilou - I'm not sure if I understand the question - which number of points are you asking about, is it in my screenshot above?

That is showing the control points that define the fillet surface, that is not a mesh calculation showing there.

Fillet calculations add as many points as necessary when creating the fillet surface to make it follow the intersection curve and within the distance tolerance, so that the fillet should not deviate more than 0.001 units from the adjacent surfaces.

- Michael