[cowanon22]

It seems unlikely that your co-workers have low IQ, but it does go to show that doing well on algorithms and toy puzzles doesn't necessarily lead to an interesting job. It seems odd that you would be assigned to a team that didn't personally interview you - is this normal practice at FAANG companies?

Your co-workers may just be zoned out and collecting a paycheck - at some point the workload can become so impossible that you just don't care anymore. This is especially true if you don't care about a company's mission, product, or customers. Unfortunately the tech boom has led to high turnover at some places, and people just jumping to the next big salary instead of picking a good long term fit.

The tech industry is big enough that you can do what makes you happy - the big name places sometimes aren't a great fit. I've found a pretty good career working at mid-tier Fortune 500 companies. There a lot of good opportunities all across the US if you're willing to forgo SV salaries, know your stuff (and can learn new tech quickly), and focus on helping the business instead of the latest tech fad. (FYI, I make 175k in the mid-west with 40hr work weeks and a 10 min commute, 5 weeks PTO, great healthcare)