Yes, you can still split-screen on Xbox One. However, the experience is not as good as it used to be.
Halo 5: Guardians, Forza Horizon 3, Gears of War 4, and Zoo Tycoon Ultimate Animal Collection all support split-screen co-operative play.
To add a second player on Xbox One, first open the Guide and select “Settings”. From there, select “System” and then “Multiplayer”. Under “Multiplayer Options”, select “Add a Second Player”. You will then be able to enter in the player’s name and password.
Yes, you can play way out split-screen on an Xbox One or PlayStation 4.
Unfortunately, no.
Yes, Forza Horizon 4 supports split-screen for up to four players.
Grid does not have split-screen.
Dirt 4 does not have split-screen.
Yes, Project Cars 2 is split-screen.
No, Forza 6 is not split-screen.