A non precision approach in selected guidance should use distance and crossing altitudes as depicted on the approach chart as the vertical guidance., but the altitudes may needs correcting for temperature variations. . If the latter is the case then the required flight path angle needs adjusting. This is what pilots have done for years in all types and is called airmanship.It is nothing to do with a specific manufacturer.
Altimeter Temperature Error Correction - SKYbrary Aviation Safety The descent rate required will also be influenced by the ground speed of the aircraft whilst commencing the approach but again this is instrument flying basics.