The Hardware Stack Protection (HSP) for Windows 11 defaults to being disabled when you download Windows 11.
If you edited your registry files and enabled HSP, you currently will not be able to access Fall Guys. HSP will need to remain disabled if you want to access Fall Guys at this time.
IMPORTANT: We do not recommend editing your registry files. Before you make any changes to any registry files we would highly recommend that you consult a professional.