How to know informal processes before its too late at Amazon Bellevue?

I tried to move internally in Amazon US. I was also going through a divorce and my wife had filed a fake police complaint in my home country. She sent emails to my manager

However, my next hiring manager told that he would collect feedback from current manager and I thought that he will ask if I was on some PIP plan (which makes me ineligible to switch). But my current manager gave negative feedback and the next manager decided not to take me.

After all this, my current manager decided to PIP me due to ‘poor performance'(in his words). Later I came to know that every manager (in US division) has a fixed firing quota/stack ranking and they generally fire employees who are unable to hide their plan about switching team.

Every manager has a mandatory firing quota of 15% every year for their reports (in Amazon USA). How to know informal processes before its too late?