Ubuntu:focal VS ubuntu:latest

General
1 
$ docker inspect ubuntu:focal | grep ubuntu
            "ubuntu:focal"
            "ubuntu@sha256:0b897358ff6624825fb50d20ffb605ab0eaea77ced0adb8c6a4b756513dec6fc"
                "org.opencontainers.image.ref.name": "ubuntu",

$ docker inspect ubuntu | grep ubuntu
            "ubuntu:latest"
            "ubuntu@sha256:20fa2d7bb4de7723f542be5923b06c4d704370f0390e4ae9e1c833c8785644c1"

Differences (general overview)?
Differences (concrete differences)?
Differences (show concrete differences with practical examples)?
When to choose one version rather than the other?
Why choose one version rather than the other?

2

Nothingggggggggggggggggg?

3

A concrete question would get you more replies. You can send a new comment to remind people the question is still unanswered but I recommend a different style, since I saw the same reply in multiple topics and it doesnā€™t attract many usersā€™ attention to helpā€¦

It looks ike you wanted a full tutorial based on a vague question. The short answer is that you should never use the latest tag for any image. Use a specific tag and now all you need to know what ā€œfocalā€ means in the world of Ubuntu. Latest will change to the latest distribution, focal will not.

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