CONFIG_FORBID_STATIC_LINK is not available for thedefaultarchitecture x86.
Result is shown for architecture um

CONFIG_FORBID_STATIC_LINK (not configurable)

configname: CONFIG_FORBID_STATIC_LINK

Linux Kernel Configuration
└─>UML-specific options
└─>FORBID_STATIC_LINK
In linux kernel since version 5.7 (release Date: 2020-05-31)