[tyrfing]

If you're paying for software on a per-core basis, you want fast cores, which means big cores. This also works well on desktop since a lot of stuff depends on single-core speeds, so it's basically where x86 has settled in. If you're scaling a workload across many thousands of cores and don't need specialized features, this makes a lot less sense, and smaller/slower cores are very competitive. ARM CPUs like Ampere and dense variants of x86 are targeting this niche.