I just setup an XS1, I use my xbox as a central streaming device. XS1 connected fine to my LG TV and Yamaha audio reciever, but it will not do ANYTHING with the Xbox. FWIW, I have a Halo Infinite edition Series X, but that shouldn't matter much for connectivity. I added the Xbox as a deivce with the "infrared" option, as that was the only one that allowed me to search for a Microsoft Device. I used the reccomened Series X codebas from Sofabaton and got nothing. I tried to manually "learn"the power button with the Xbox remote, it says "success", but it never works. I worked through all 57 power options from the cloud suggestions (twice), I got it to start up 2 times total, but neither startup was repeatable upon saving and exit.
I deleted the device and re-added it several times, using different user uploaded code bases, and got nothing. The Xbox starts right up with a controller or Xbox Media Remote. The setup process in general was a PITA that made me miss my Logitech Harmony even more, not even accounting for the fact that the deivce doesn't even work as advertised.