Last year at the beginning of the pandemic I started implementing a devops infrastructure at work where I work as a lead developer. Initially the idea was to allow developers to run anything (or a selection of things) required for production on their local machine (k3s, kind etc) with added tooling for development (consistently working tools inside the container, but even outside by the use of binding). All I needed was a simple way to run containers and the requirements. Docker soon proved to be inadequate, it lacked certain features and I soon moved to k8s for local development and a devops pipeline.
People commit their changes, I (and sometimes another dev) review them and they are pushed to the test environment, from there to staging and then production (with a way to easily roll back). This is all done automatically with out-of-the-box solutions (fluxcd, flagger, kilo, kaniko etc).
At work, Kubernetes is not considered too difficult to manage. Much can be done in a very consistent and complete way unlike Docker. What am I overlooking that makes k8s to be considered snake-oil by so many?
Edit: Forgot to add. I am so happy with k8s that I even run it at home and on my external servers.