I don't know about vast majority, but for many, yes. Where health checks come in handy for me is when my services are unreliable. I find it pretty common that m

I don't know about vast majority, but for many, yes. Where health checks come in handy for me is when my services are unreliable. I find it pretty common that my services don't crash outright, but they get into weird states that make them nonfunctional. systemd doesn't help you there, since it only cares if the process is still running. Something like stealthcheck makes it easy to run smoke tests (or even full integration tests) and force restart the service if they fail. Then again maybe I'm just bad at writing services.