Short range drones are being used in Australia.
And I heard of at least one company working with apartment architects to standardize a “port” on the building exterior to which a truck/robot would connect to “inject” packages to the inside.
Last I read (late 2023 IIRC) these were being cancelled in various areas, if not everywhere? People in neighborhoods were getting annoyed by the noise of drones buzzing overhead.
Sadly, this would still be an improvement on many smaller delivery services that especially Amazon is fond of using.
But to be serious, there may be a way of doing it, it just seems very far off unless you're talking about Amazon hub or something like that, where it would be more feasible (but still difficult to achieve).