What is Helm?
Answer
Package manager for Kubernetes. Basically the ability to package YAML files and distribute them to other users and apply them in the cluster(s).
As a concept it's quite common and can be found in many platforms and services. Think for example on package managers in operating systems. If you use Fedora/RHEL that would be dnf. If you use Ubuntu then, apt. If you don't use Linux, then a different question should be asked and it's why? but that's another topic :)