I don't know if I'd be able to characterize the places I've had bad managers at by the existence of them, but some common elements among those bad managers are

I don't know if I'd be able to characterize the places I've had bad managers at by the existence of them, but some common elements among those bad managers are that they're anxious, passive, stressed out people who go from IC to Director, but can't then stay out of the kitchen, and aren't great communicators. The best manager I've ever had engaged me on a technical level and asked for my help outside of my immediate responsibilities just frequently enough, had been through the same shit code I now had to deal with and left me to it, and was forthcoming, transparent, and collaborative during 1:1s. The worst manager I've ever had tried to repeatedly trick me into admitting fault regarding some inane pet issue they were clearly stewing on, failed to identify any kind of clear success criteria for any given task, and possibly just put me on mute during 1:1s.