A friend of mine working as a deep learning engineer at one of the big tech companies is working her ass off due to fear of layoffs. She mentioned that their manager takes quiz! from them and gives them performance tests. The vibe is incredibly tense and except a few who are working on secret projects, the rest are left hanging in a looming lay-off round.
Every day she works till late at nights or awake 5am to continue working. She now thinks that working like that over the pas few months has reduced the chances of her being laid off but she's is completely fed-up and I think she's risking having a burnout.