What do you think caused the change from being so employee-friendly to so employee-hostile?

I won't pretend to be a mind-reader of the executives involved. I was a line engineer, so effectively watching from the sidelines. It was temporally close to Sheryl Sandberg leaving her role as COO, but I have no insights into how much that was a factor, a reaction, or neither.

From my perspective a lot of it was downstream of over-hiring in the post-pandemic frenzy. It's hard to maintain that culture while doing large layoffs, and there's no incentive for them to do so beyond the longer term reality that many of their best employees have left and they're increasingly seen as a place to earn a top paycheck in between layoffs.

They were employee-friendly when they wanted to hire. It's been years of layoffs, with another 10% from May onward.