This is kind of silly. You probably chose to work at a company that “made billions”. You probably sought some perks related to doing so, be it remuneration, prestige, whatever. This is in part a game you choose to play, and the company that’s making billions is acting like a company that makes billions. You may in the future choose to make a different trade-off and work elsewhere? And I don’t mean some grow-or-die VC-backed startup.
I've worked across the spectrum from 8 people companies to 20,000 employee multi-nationals. From companies 30 years old to startups. It doesn't make a difference.
You likely won't see redundancy coming. Chances are you'll be dismissed out of the blue one random day.
Similar to me. The bigger the org the less likely you are to see it. My first one I see it in hindsight at a small company. They actually asked how many pens and pencils I had in my desk.
I have a hard time believing faang employees won't just drop the company they are working for if they are offered a 15 percent payrise from a competing company. Employees don't have to be loyal to their employers, why do employers have to be loyal to employees?