Microsoft announced the launch of keyboard and mouse support for the Xbox. At the moment, you can try them in Fortnite: Battle Royale and Warframe. It clarifies that in Fortnite players will have a separate matchmaking for gamepad users and keyboard with a mouse. Later, several more games will be added to Fortnite and Warframe.
List of future games with keyboard and mouse support:
Deep rock galactic
Children of morta
In January 2019, at the Consumer Electronics Show, Microsoft, in partnership with Razer, will present a new keyboard and mouse for the Xbox One. At the same time, Microsoft has promised that most modern keyboards and mice will work with the console.