On 01/25 I still managed to play fortnite on xcloud, but yesterday I tried and it didn't work, every time I got the error that there was a problem and I gave the option to refresh the page, I talked to a guy who had the same problem, only which for him it had stopped working for 1 month, yesterday I also tested it on my brother's pc and it opened normally, I tried to update windows it didn't solve it, I tried to disable all extensions and they weren't the problem either, now I just had to ask for help on Opera GX or Microsoft support while using another browser to play on xcloud.
(OBS: sometimes it even loads the game, but it's rare and when it loads, everything is buggy, you can see that in the image that I'll leave.)