AMD's Ryzen 9950X3D and 9800X3D were tested on Windows 10 and they handily beat Windows 11 on Microsoft's recommended settings.
Core isolation RSS
Microsoft has released a useful tool for users so that they can check for compatibility issues with memory integrity or HVCI (hypervisor-protected code integrity), a key security feature in Windows.
Microsoft may have quietly fixed the Local Security Authority (LSA) is off issue with a recent update to Defender. The company is also pushing out new kernel-mode hardware stack protection.
Microsoft is seemingly enabling VBS on Windows 10 as well, something which was limited to Windows 11 only previously. This could lead to potential performance loss as latest testing indicates.
Microsoft has issued a statement where it acknowledged that some features in Windows 11 cause performance downgrade while playing games. Fortunately, you can quickly turn off those features.
VBS or Core Isolation feature on Windows 11 is seemingly causing multiple problems on various tweaking tools like MSI's Afterburner and Intel's Extreme Tuning Utility (XTU), among others.