I‘m not talking about the three dashes in spd and heading, but rather the dots beside them indicating managed Mode. See picture.
As Xenon341 states, it seems to be MSN dependent but the Ini A350 doesn‘t have them.
So, when flying the STAR in managed Mode, the descend Profile doesn‘t take the alt restrictions into account. In the specific waypoint, where there was a restriction above FL100 but under FL150, the plane was about 3000ft above indicating an optimum descend (Green dot on the PFD).