I've tried Zoneminder, Shinobi, iSpy AgentDVR and most recently Frigate. I have seven IP cameras with PoE and anything I run is on docker. My personal experiences are as follows:

• Zoneminder: dated UI when compared to other software, pain to setup properly, needs a lot of fiddling to get it to work properly. Used it for over a year. Never did.

• Shinobi: Wanted very much to like it, but the CPU and RAM usage was ridiculous. That wasn't a container. It was Pac-Man for resources.

• Agent DVR: Pretty good. Could be a bit slow when detecting and the UI was a bit annoying (many nested menus and such), but overall it was a good solution. I ran it for nearly two years but at some point they decided https was not for the free version anymore and it stopped working behind Traefik. That was a deal-breaker for me.

• Frigate: I've started using that recently (about a month). So far I like it a lot. It works best with a Coral (I adddd a USB accelerator in a passthrough to an LXC container as described above). Setup can be a bit intimidating (it's all config based) but it's lightweight, has a responsive UI and has very good integration with HA, which I also use. The AI detection leaves a bit to be desired for longer-distance cameras (I have a lot of cats waltzing around that never get recorded and they often get mislabeled as dogs or birds), but that may be me needing to play with the parameters a bit more.

Hope that helps a bit!