why does this occur everytime I attempt to play a sport?

for context: I'm making an attempt to play Fortnite and I heard you’ll be able to play it in your cellphone with xbox cloud gaming however after I tried to obtain Fortnite it gave me this.. I attempted it additionally on my steam deck and the identical factor occurred.. does anybody know why this would possibly've occurred? does it should do with the kind of system I’ve? as a result of I've seen different individuals do that they usually haven’t any issues with it and its simply me 🙁 additionally simply to notice; I've by no means used Xbox cloud gaming earlier than