A UK checklist for Xbox Cloud Gaming
Check the catalogue, subscription, device and connection together.

Xbox Cloud Gaming streams supported games on compatible devices. Start with the current UK catalogue and check that the game you want is included. A cloud gaming plan depends on support for that particular title, so keep the catalogue check tied to your intended game.
Next, check the subscription requirements and confirm that your chosen device is compatible. Treat these as separate checks, since the service description alone cannot establish whether your own combination of game, subscription and device meets the requirements.
Finally, review the current connectivity requirements against the connection you intend to use. Completing these checks together gives you a practical basis for deciding whether cloud streaming fits your plans. Revisit the current information when arranging a later session.