In Homem-Aranha: longe de casa, vemos que Tony Stark
has left behind an augmented reality security, defense and artificial tactical intelligence system for Peter, called E.D.I.T.H (Even Dead, I'm The Hero).
E como vemos mais adiante no filme, citando aqui,
[E.D.I.T.H] allows the user full access to the entire Stark satellite network, which comes with several hundred tactical drones.
Segue esta resposta, pode-se supor que EDITH foi provavelmente
developed by Stark during the five years time after the snap. The drone network could have been also put in place during the same time as well (otherwise, when could he?).
Considerando isso, há uma razão pela qual, em Vingadores: Fim do jogo Tony não pensou em usar
the drone network during the final battle at the Avengers HQ against Thanos and his army?