Every operating system, that's relevant in 2025, needs that concept. It is called NUMA. At some point you cannot model the system ignoring the memory affinity / closeness to the cores.

Modern AMD CPUs are literally consist of core groups on chiplets. It is better for an OS to make decisions / expose APIs for cores that are physically so far away from each other that moving data back-and-forth over the RAM, system bus or interconnect has significant time penalties.