Haven't watched the video - but I've noticed that on my Series X, installed to an external drive the game will launch and play, but also displays a Series X logo. This isn't unusual as there are several games that are Series X aware. The kicker is that it *also* shows the 'transfer' symbol that is used for Series X games stored on external drives. That isn't something I've ever seen on a game that will actually launch so it makes me wonder if they've done something special here, or if an internal storage install provides some further benefit aside from loading time improvements.