A detailed description of the issue.: When playing any game mode on any map on the Series X, the framerate will, roughly every five seconds, drop well below 60 (micro stutter / stuttering). This occurs even in performance mode, where the game should be 120fps. Other friends with the series X tell to me the same problem. This framerate instability makes playing the game very uncomfortable. See video for an average example.
Quick fix suggestion: Allow Series X owners to play the Xbox one X