The youtuber Modern Vintage Gamer demonstrated in a video that, thanks to the developer mode, Xbox Series X and S can safely run RetroArch, an emulation software capable of playing games designed for the consoles of past console generations.
In fact, we can see how you can safely, and without any kind of hack or illegal modification, to do also run historical titles for PlayStation 2 on new generation Microsoft consoles. So we see productions such as God of War, ICO, Jak and Daxter: The Precursor Legacy, Shadow of the Colossus and God Hand at work. There is no shortage of bugs and slowdowns from time to time, but the program still has great room for improvement.
As everyone already knows, PlayStation 5 is unable to do what Xbox Series X does with PS2 titles, despite being its own production. In fact, Sony's backward compatibility stops exclusively with PlayStation 4 products, hoping that perhaps, one day, the Japanese company will be able to extend this capacity to the titles of older generations as well.