That would be the extra that xbox lacks, i mean, the windows 10 core and x86 architecture is already there, and with Series X you have now the power to run PC games at acceptable speed and graphics so it's just a matter of adapting the system to allow that and the console would be much more...
Caller -"Everytime I start a Pc game on my S24, playing on a external monitor, someone calls or texts me, n it kicks me out of the game." Customer Support - Click (hangs up)