Is the order of webpack plug-ins in order?

Today, I am reading how to use vw to implement mobile adaptation in the Vue project . If you want to try to build a react+vw environment, I would like to ask you a few questions.
question: in the 1:postcss-loader configuration, can the order of plug-ins loaded in plugins be adjusted at will? I didn"t really deserve webpack, to ask for an answer.
`{

  // Options for PostCSS as we reference these options twice
  // Adds vendor prefixing based on your specified browser support in
  // package.json
  loader: require.resolve("postcss-loader"),
  options: {
    // Necessary for external CSS imports to work
    // https://github.com/facebook/create-react-app/issues/2677
    ident: "postcss",
    plugins: () => [
      require("postcss-flexbugs-fixes"),
      require("postcss-preset-env")({
        autoprefixer: {
          flexbox: "no-2009",
        },
        stage: 3,
      }),
    ],
  },
},`

question 2: desert is equipped with cssnano,. See the introduction in his article that cssnano and css-loader are bundled together. Is it no longer necessary to configure cssnano in CRA?

Aug.17,2021
There is no limit to the order of

plugin, because each plugin internal implementation is handled with hooks, that is, callback functions.

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b374a1-2c088.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b374a1-2c088.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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