The latter. I've seen so much unethical shit here, I'd love to give more detail but I'd probably dox myself

Don't let it break you. Take whatever money you made and run.

The rest of big tech isn't much better. Big G is less stressful, but you'll see vicious and cringey behavior left and right. Hyped large startups are cults and 100% cringe. Meta is kind of the worst of both worlds though. "But they pay so well". Yeah, also: life is short.