Another ex-researcher here. Similar experience. I went in with hopes of a lot of rationality and intense cooperation between people who would be there mostly for a shared curiosity. Fast forward years and... Good grief - so, so many people publicly being shouted down, shamed, bullied, insulted. So many serious abuses of power - up to sexual and bodily - essentially without consequences for the abusers (often with way more negative consequences for the victims if they complained). So many tears, so many ends to academic careers of people who were really smart and really cared - in quite a few cases accompanied by burn-outs and other long-term health consequences. So much tax money down the drain with questionable accounting up to outright lies. So, so many utterly absurd intrigues and wars between mini-kingdoms based on nothing but the feelings of the biggest, loudest and most vicious narcissists. So many publications of questionable methodology that are sliced as thinly as they possibly can be and are hyper-targeted towards all-important journals or conferences. And so much more soul-destroying nonsense.

I'm still mostly in academia but nowadays, I focus on teaching and infrastructure. Especially with teaching, I feel that I can make more of a long-term impact that I ever could as a researcher - not least because I have way more freedom for discussions and interesting projects with students (I still have to deal with way more hostile, petty and sometimes outright dangerous BS than I feel comfortable with - but it's better than in the even-higher-pressure parts of the system).