Warning: React version not specified in ‘eslint-plugin-react settings’ while running eslint on top of React 18.2.0

Add this to your config:

{
  "settings": {
    "react": {
      "version": "detect"
    }
  }
}

See the config here: https://github.com/jsx-eslint/eslint-plugin-react/blob/master/README.md#configuration