I am positive faang engineers are very sharp but would they be "expert at the latest technologies"? E.g. an engineer at Google likely has a whole host of bespok

I am positive faang engineers are very sharp but would they be "expert at the latest technologies"? E.g. an engineer at Google likely has a whole host of bespoke systems vs. a mixture of vendor and open source solutions the rest of companies tend to use. E.g. Borg vs. Kubernetes and the like.