So, as a DevOps practitioner myself, I had enough say within the organizations I worked at, who are now clients, and also my other clients, that anything not in a dev environment goes through our GitOps pipeline. Other than the GitOps pipeline, there is zero write access to anything not dev.
If we stop using a resource, we remove a line or two (usually just one) in a manifest file, the GitOps pipeline takes care of the rest.
Not a single thing is unaccounted for, even if indirectly.
That said, the DevOps-in-name-only clowns far outnumber actual DevOps people, and there is no doubt a large market for your product.
edited: added clarity