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

CONFIG_FTRACE_MCOUNT_RECORD (not configurable)

configname: CONFIG_FTRACE_MCOUNT_RECORD

Linux Kernel Configuration
└─>Kernel hacking
└─>Tracers
└─>FTRACE_MCOUNT_RECORD
In linux kernel since version 2.6.28 (release Date: 2008-12-24)