A lot of people even at Google just do run-of-the-mill stuff. Not everyone is making deep learning artificial big table or some such.

A rule of thumb is at any organization roughly square root of employees are critical. So at Google that number would be < 500 people. So even when I consider that layoffs are totally random (unlikely), there would be 40 or so people laid off which could be considered important loss. This is bad but not going to hamper Google significantly where they are going.