What is the difference between a pod and a deployment?

Question

I have been creating pods with type:deployment but I see that some documentation uses type:pod, more specifically the documentation for multi-conta

Answer 1

Try to avoid Pods and implement Deployments instead for managing containers as objects of kind Pod will not be rescheduled (or self healed) in the event of a node failure or pod termination.

A Deployment is generally preferable because it defines a ReplicaSet to ensure that the desired number of Pods is always available and specifies a strategy to replace Pods, such as RollingUpdate.