I worked at Google for 12 years. I will admit I had a hard time separating my personal emotions and thought-space from my technical work and discussions with coworkers. eventually, I left because I realized that I was truly suffering, mentally (even though many interactions I had with coworkers were excellent, and enjoyed talking to them both technically and personally).

My worst interactions at Google were with Google Research. So were my best- things changed signficantly for the worse as Google Research transitioned (from Alfred Spector to John Gianndrea to Jeff Dean). It's not an org I woudl want to be associated with in the future, for reputational reasons.