Editor is shown at full width

The title field and all editor is full width. I don't know where to start looking. Any clue is welcome.

All plugins deactivated.

Topic editor Wordpress

Category Web


As theme handbook said, I have to define the containers in the theme.json

{
    "version": 2,
    "settings": {
        "layout": {
            "contentSize": "840px",
            "wideSize": "1100px"
        }
    }
}

About

Geeks Mental is a community that publishes articles and tutorials about Web, Android, Data Science, new techniques and Linux security.