After update last night I played Nahverkehr Dresden for the first time, I went through all the tutorials but the ICE3 was missing I am playing on Xbox series S
The ICE 3 and ICE 3M weren't included in the base route. ONLY the locos that come with the route will get a tutorial. As bobbobberdd said, you will need to visit Shnellfahrstreke Koln - Aachen, or Hauptstrecke Munchen - Augsburg for the relevant tutorials.