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

CONFIG_ACPI_THERMAL_LIB (not configurable)

modulename: thermal_lib.ko

configname: CONFIG_ACPI_THERMAL_LIB

Linux Kernel Configuration
└─>Power management and ACPI options
└─>ACPI (Advanced Configuration and Power Interface) Support
└─>ACPI_THERMAL_LIB
In linux kernel since version 4.19.310 (release Date: 2024-03-15)  
source code:
drivers/acpi/thermal_lib.c