I have mixed thoughts on this. The one company I quit, I quit in large part because my manager was abusive. A particular tantrum my manager threw was what caused me to apply to several jobs in a fit of pique, and when one of them gave me an offer, I put in my notice. On the other hand, the company was toxic on several levels, the abusive manager was only part of it, and I'd been looking at job postings on and off for months before that incident.
The pay was abysmal. Nobody at the company had any insurance (because of this I will never work for a startup again). Company leadership was willing to roll over for a transphobic landlord and throw me under the bus. The company was a young startup without any infrastructure or processes, and pretty much everybody technical had very little professional experience (including both the technical leadership and the rank-and-file; and I say this even though I ended up becoming friends with several of my fellow rank-and-file, most of whom I still talk to to this day). Somehow I got along well with the CTO, but he was very mercurial and there were some people there (including a couple friends of mine) he took a strong personal dislike to for no real reason, and I was always afraid he would turn on me. I definitely quit the company and not just the manager.
I still keep up with them and their employees on LinkedIn. One thing I've noticed is that since I left, they've been handing out Director titles like candy, I'm assuming to compensate for their lack of monetary compensation.
The company was a disaster on pretty much every level. The one good thing I could say about it was that some of my ex-coworkers there are still friends of mine, but that's a really low bar.
Edit: I want to add another story. The company I ended up jumping ship to, I came close to quitting before they laid me off, for reasons that had nothing to do with my manager. My manager was excellent. I liked him a lot. But the work I was doing had nothing whatsoever to do with my skillset. I felt like an idiot compared to my coworkers, I made far less useful contributions than pretty much anybody else at the company (my boss reassured me that he didn't care because he knew the stuff they did was esoteric and was willing to spend years training someone new), and the longer I stayed the more it felt like it was actually harming my career since I was letting my specialty atrophy (and I still thought this even though I'm not a career-minded person!). Ultimately, that decision got taken out of my hands because 1/3 of the company including me got taken out in the only layoff in the company's 20-year history, but if I did quit it would have been despite my manager being awesome, not because of him.
The pay was abysmal. Nobody at the company had any insurance (because of this I will never work for a startup again). Company leadership was willing to roll over for a transphobic landlord and throw me under the bus. The company was a young startup without any infrastructure or processes, and pretty much everybody technical had very little professional experience (including both the technical leadership and the rank-and-file; and I say this even though I ended up becoming friends with several of my fellow rank-and-file, most of whom I still talk to to this day). Somehow I got along well with the CTO, but he was very mercurial and there were some people there (including a couple friends of mine) he took a strong personal dislike to for no real reason, and I was always afraid he would turn on me. I definitely quit the company and not just the manager.
I still keep up with them and their employees on LinkedIn. One thing I've noticed is that since I left, they've been handing out Director titles like candy, I'm assuming to compensate for their lack of monetary compensation.
The company was a disaster on pretty much every level. The one good thing I could say about it was that some of my ex-coworkers there are still friends of mine, but that's a really low bar.
Edit: I want to add another story. The company I ended up jumping ship to, I came close to quitting before they laid me off, for reasons that had nothing to do with my manager. My manager was excellent. I liked him a lot. But the work I was doing had nothing whatsoever to do with my skillset. I felt like an idiot compared to my coworkers, I made far less useful contributions than pretty much anybody else at the company (my boss reassured me that he didn't care because he knew the stuff they did was esoteric and was willing to spend years training someone new), and the longer I stayed the more it felt like it was actually harming my career since I was letting my specialty atrophy (and I still thought this even though I'm not a career-minded person!). Ultimately, that decision got taken out of my hands because 1/3 of the company including me got taken out in the only layoff in the company's 20-year history, but if I did quit it would have been despite my manager being awesome, not because of him.