

It’s not the same thing. The ROG Ally X is an AMD Z1 Extreme and the Xbox Ally X is an AMD Z2 Extreme. It’s not clear yet how well the Z2 Extreme performs in comparison to the Z1 Extreme.
The Phawx did some testing with the Legion Go 2 and their Z2 (non-extreme) performs worse than the ROG Ally X. -> https://www.youtube.com/watch?v=gVdOkbJ9Npo&pp=ygUVTGVnaW9uIEdvIDIgdGhlIHBoYXd4
My cautious expectation is that it will perform marginally better than the ROG Ally X, maybe be 10-15%, though I’m not touching anything Microsoft at this time in history.
I’ve recently learned that, if you connect your Battlenet launcher to your Xbox account, you can in fact play Diablo IV, Call of Duty and whatnot with your gamepass subscription. That works even on Linux.