I understand you are trying to get the equivalent of a golf handicap, with the hope that you will be evaluated on your potential and not your actual production. The problem with that approach is that almost nobody lives a 'clean' life: if you were to poll all postdoc applicants, you'll find that they all have gone through at least one major setback: serious illness, divorce, death in the family or of a close friend, abusive relationships, unwanted pregnancy or miscarriage, mental health issues, estrangement from parents (e.g. being cut-off from financial support), etc. There's a misconception, particularly in US culture (where I live, I don't know where you live) that everybody has a 'clean' life and a few, the exceptions have setbacks. This attitude is not as common in other countries, e.g. countries in Latin America or Germany, where people more openly talk about their problems.
Trying to get a handicap because of a stressful divorce might work against you, because it will mark you as the type of person who wants to be evaluated on potential and not results. A prospective employer will then ask themselves what will you do when the next thing happens, e.g. when one of your parents inevitably dies, your child goes to the hospital, you end up in a bad relationship, etc. Will you be the type that sends an email message mid-project saying you will take a month-long "mental health break" (this has started to become more common in the past few years)? This is not to say that you should not take time off work when you need it, but that presenting yourself as someone wanting to be evaluated on potential and not results is a big red flag.