CONFIG_RISCV_SLOW_UNALIGNED_ACCESS is not available for thedefaultarchitecture x86.
Result is shown for architecture riscv

Assume the system supports slow unaligned memory accesses

configname: CONFIG_RISCV_SLOW_UNALIGNED_ACCESS

Unaligned Accesses Support
└─>Assume the system supports slow unaligned memory accesses
In linux kernel since version 6.1.89 (release Date: 2024-04-29)  
Assume that the system supports slow unaligned memory accesses. The
kernel and userspace programs may not be able to run at all on systems
that do not support unaligned memory accesses.