This already started to happen a while ago (couple months?) in Munich. Amazon packages are delivered by a specific Amazon delivery person instead of DHL as before. Now I don’t need to sign anything any more when at home and when I’m not at home, it will be left in front of my apartment door; whereas DHL either handed it over to a neighbour or a ‘closeby’ post office.

Not sure what I would do if a shipping went missing while in front of my apartment door, but from past interactions with Amazon, I’d assume they send a new one without asking questions.