I had to ragequit in the third minute. "A container is the filesystem inside your application." Just, no.

This is exactly the kind of word salad approach to explaining k8s that I complained about in my other comment. All of the k8s tutorials are written by (or recorded by) people with no idea what they are talking about.

Honestly, please record a better one. It's true that most tutorials are very confusing and mix up terms. It's very hard to find good docs. If you have the time, please write something, I'm sure it'll be appreciated.