default or selected kernelversion does not have config value CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT.
Result is shown for kernelversion 6.9-rc5

CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT (not configurable)

configname: CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT

Linux Kernel Configuration
└─>General architecture-dependent options
└─>ARCH_WANTS_DYNAMIC_TASK_STRUCT
In linux kernel since version 4.1 (release Date: 2015-06-21)