PUBG Will Run At 30 FPS On All Xbox One Devices, PlayerUnknown Clarifies
https://www.gamespot.com/articles/pubg-will-run-at-30-fps-on-all-xbox-one-devices-pl/1100-6455305/
[Update] Brendan "PlayerUnknown" Greene has clarified that PUBG will run at 30 FPS on all the Xbox devices, including the Xbox One X, when the game becomes available through Xbox's Game Preview Program.