Its package manager for Kubernetes , similar you yum, apt, homebrew, dnl

example installing dynatrace

https://docs.dynatrace.com/docs/ingest-from/setup-on-k8s/deployment/platform-observability#helm

helm install dynatrace-operator oci://public.ecr.aws/dynatrace/dynatrace-operator \
   --set "csidriver.enabled=false" \
   --create-namespace \
   --namespace dynatrace \
   --atomic