Step 1: Once you’re ready, select the icon at the top left on the home screen, then navigate to the user account menu (again on the left). Select Add new, and then add both accounts to your Xbox
The Xbox Series X has the most power of any current-gen console and has almost twice the storage as the Series S. Get the Series X if you’ll use it with a 4K TV (now or eventually), want theThe same profile will work on both consoles. You can also be simultaneously logged-in on an Xbox One and an Xbox 360 using the same Xbox Live account. You can freely roam across any number of Xbox
it's up to the developer on if they allow Multiplayer on the same console. Each game that allows this is different on how they implement it. Some just require a press of the start button, others require you to pick the 2Player option before you enter the game. Please refer to the games website or developer to see if the game you want to play 10I7ub.