It runs bad on the series x. It reminds me of when I thought I had a pc that could run crysis and crysis quickly embarrassed my pc.
I mean Atlantis is still a stuttering and unsteady mess, but beyond that...I'm straight . Crazy that the Series X got issues with running the game. Hell you can damn near play the game on Steam Deck and the game was a mess and a half 5 patches in.