Is it complex? Yes, but so is the problem it's trying to solve. Is its complexity still nicer and easier to use than the previous generation of multimachine deployment systems? Also yes.
Coolify is full of features, but the UX suffers and they had a nasty breaking bug at one point (related to Traefik if you want to search it.) Dockge is just a simple interface into your running Docker containers and Komodo is a bit harder to understand/come up with a viable deployment model, and has no built-in support for things like databases.
Dokploy is more Heroku-styled: while you can deploy third-party apps (it's just Docker after all), it seems really geared towards and intended for you to be deploying your own apps that you developed, alongside a "managed" database (meaning, the DB is exposed in the UI, includes backup functionality, and can even be temporarily exposed publicly on the internet for debugging.)
Coolify feels a bit like a mix of the two deployment models, while Dockge is "bring your own deployment" and Komodo offers to replace Terraform/Ansible/docker-compose through its own declarative GitOps-style file-based config but lacks features like managed databases, or built-in subdomain provisioning.