default or selected kernelversion does not have config value CONFIG_ASK_IP_FIB_HASH.
Result is shown for kernelversion 5.4.69
FIB_HASH
configname: CONFIG_ASK_IP_FIB_HASH
Choose IP: FIB lookup algorithm (choose FIB_HASH if unsure)
└─>FIB_HASH
In linux kernel since version 2.6.13 (release Date: 2005-08-28)
Current FIB is very proven and good enough for most users.