Gaming

Red Dead 2 is already almost there. The only real loading screen you get is when you launch the game, the others (fast-travelling from camp and skipping traversal during story missions) are fitting in-game cutscenes.

God of War (2016 and I assume Ragnarök too) is a single continuous camera shot from the moment you first launch the game to the very end. Barring death, the only kind-of loading screen you encounter is walking along the branches of Yggdrasil.