Totally agree with your last point. There's just not enough information in the post to really assess what's happening with any accuracy. It's open to wild speculation. On one extreme the manager could be putting a toxic level of pressure directly, on the other extreme it could be entirely self-inflicted. If I had to guess, the truth is most likely somewhere in between due to a general stressful miasma in the air of the current macro-environment after a 12-year bull run, a rank and file dominated by a younger cohort that has never known any different, and the general failure of Zuck's metaverse vision so far.

Would this be better somewhere else? Very hard to say. Meta is incredibly solid from a revenue and business perspective, and they've taken their medicine, so upside is definitely there. Meanwhile the economy is affecting pretty much everyone, so good luck finding somewhere more stable. All of this is background noise compared to the individuals involved though. Could be as simple as just changing teams internally.