Greetings Mr. Mark MacGregor,
When you apply a Group Policy that targets a Windows 10 feature version, only devices running Windows 10 with the specified feature version are affected. This policy does not apply to devices running Windows 11, as operating systems are beyond the scope of this policy.
Setting the Windows 10 Feature Release Group Policy will not affect PCs already running Windows 11. Group Policy was designed for that operating system, and Windows 11 has its own set of Group Policy separate from Windows 10.
If your laptop is running Windows 11, it will not be affected by the Group Policy you set for the Windows 10 feature version. Your laptop will continue to function according to policies and settings specific to Windows 11.
It's worth noting that Windows 11 introduces new features, security enhancements, and compatibility requirements that differ from Windows 10. In general, before upgrading to Windows 11, we recommend evaluating application and system compatibility, and reviewing and adjusting Group Policy to meet your specific Windows 11 needs.
Hope it helped!