Hi,
I'm Pedro A, Independent Advisor
I had the same problem with notifications
So I disabled Game Mode via Gpedit
Press Win+R and type:
gpedit.msc
press enter
Follow the cumin below
Computer Configuration -> Administrative Templates -> Windows Components -> Windows Game Recordings and Broadcasting
Double click on: "Enables or disables Windows Game Recording and Broadcasting"
Select "Disable" > Apply and OK
Restart your Windows
(If your Windows 11 is not the Pro version, please let me know)