Issues with PC post-launch of Fortnite, could someone help me?

[Windows 11]

When I launch Fortnite , my headphones stop working, at some point the Wi-Fi stops working,I can't launch Start,Task Manager,interact with the Desktop,just move my cursor. And that's also even if I close it.Only thing I can do is use the power button, also this is what Start looks like after closing Fortnite.It wasn't like that till the newest update like 2-3 days ago.

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