default or selected kernelversion does not have config value CONFIG_FUNCTION_ALIGNMENT_32B.
Result is shown for kernelversion 6.9.9

CONFIG_FUNCTION_ALIGNMENT_32B (not configurable)

configname: CONFIG_FUNCTION_ALIGNMENT_32B

Linux Kernel Configuration
└─>General architecture-dependent options
└─>FUNCTION_ALIGNMENT_32B
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
is depended by
CONFIG_CALL_THUNKS_DEBUG