<PackageReference Include="System.Security.AccessControl" Version="5.0.0-preview.6.20305.6" />

PropagationFlags

public enum PropagationFlags
Specifies how Access Control Entries (ACEs) are propagated to child objects. These flags are significant only if inheritance flags are present.
namespace System.Security.AccessControl { [Flags] public enum PropagationFlags { None = 0, NoPropagateInherit = 1, InheritOnly = 2 } }