Maybe you're right - I've never tried dokploy, but from documentation it sounds like mostly a deployment, monitoring and alerting tool. For me the problem has always been that once you get the alert (or something just stops working), a human needs to react to it and make things work again. In cloud services you mostly pay for them providing the human, and in self-hosting you're the human.

I can see though that today's AI models could eventually replace the human in the loop and truly automatically fix every possible situation.