draftEditor

This editor is based on Draft.js. Using the draftEditor option you can change any of the Draft.js editor options listed here:

https://draftjs.org/docs/api-reference-editor

() => {
  const config = {
    draftEditor: {
      readOnly: true,
    },
  }
  const [editorState, setEditorState] = React.useState(
    MUIEditorState.createEmpty(config),
  )
  const onChange = newState => {
    setEditorState(newState)
  }
  return (
    <MUIEditor
      editorState={editorState}
      onChange={onChange}
      config={config}
    />
  )
}

() => {
  const config = {
    draftEditor: {
      readOnly: true,
    },
  }
  const [editorState, setEditorState] = React.useState(
    MUIEditorState.createEmpty(config),
  )
  const onChange = newState => {
    setEditorState(newState)
  }
  return (
    <MUIEditor
      editorState={editorState}
      onChange={onChange}
      config={config}
    />
  )
}

You can edit the code above and try other options.