Comment by philjohn

You're comparing Apples to Oranges (with Apple).

about half (80k) of the equivalent fulltime employees at Apple are involved in the store footprint, so they're retail staff in one of their main sales channels.

And as other's have pointed out, Apple has a far wider range of products and services than Meta, and produce far more hardware products, including their own cutting-edge SOC's. Meta, meanwhile, get Broadcom to largely produce their "custom ASIC's", not just fab, but deeply involved in design, tape out, and validation.