[docs] Update/simplify info around Metro for env setup

Author: huntie

docs/_getting-started-linux-android.md

@@ -125,19 +125,19 @@ Click "Next" then "Finish" to create your AVD. At this point you should be able
 
 <h3>Step 1: Start Metro</h3>
 
-First, you will need to start Metro, the JavaScript bundler that ships with React Native. Metro "takes in an entry file and various options, and returns a single JavaScript file that includes all your code and its dependencies."—[Metro Docs](https://facebook.github.io/metro/docs/concepts)
-
-To start Metro, run `npx react-native start` inside your React Native project folder:
+[**Metro**](https://facebook.github.io/metro/) is the JavaScript build tool for React Native. To start the Metro development server, run the following from your project folder:
 
 ```shell
 npx react-native start
 ```
 
-`react-native start` starts Metro Bundler.
-
-> If you use the Yarn package manager, you can use `yarn` instead of `npx` when running React Native commands inside an existing project.
+:::info
+If you use the Yarn package manager, you can use `yarn` instead of `npx` when running React Native commands inside an existing project.
+:::
 
-> If you're familiar with web development, Metro is a lot like webpack—for React Native apps. Unlike Kotlin or Java, JavaScript isn't compiled—and neither is React Native. Bundling isn't the same as compiling, but it can help improve startup performance and translate some platform-specific JavaScript into more widely supported JavaScript.
+:::note
+If you're familiar with web development, Metro is similar to bundlers such as Vite and Webpack, but is designed end-to-end for React Native. For instance, Metro uses [Babel](https://babel.dev/) to transform syntax such as JSX into executable JavaScript.
+:::
 
 <h3>Step 2: Start your application</h3>
 

docs/_getting-started-macos-android.md

@@ -135,19 +135,19 @@ Click "Next" then "Finish" to create your AVD. At this point you should be able
 
 <h3>Step 1: Start Metro</h3>
 
-First, you will need to start Metro, the JavaScript bundler that ships with React Native. Metro "takes in an entry file and various options, and returns a single JavaScript file that includes all your code and its dependencies."—[Metro Docs](https://facebook.github.io/metro/docs/concepts)
-
-To start Metro, run `npx react-native start` inside your React Native project folder:
+[**Metro**](https://facebook.github.io/metro/) is the JavaScript build tool for React Native. To start the Metro development server, run the following from your project folder:
 
 ```shell
 npx react-native start
 ```
 
-`react-native start` starts Metro Bundler.
-
-> If you use the Yarn package manager, you can use `yarn` instead of `npx` when running React Native commands inside an existing project.
+:::info
+If you use the Yarn package manager, you can use `yarn` instead of `npx` when running React Native commands inside an existing project.
+:::
 
-> If you're familiar with web development, Metro is a lot like webpack—for React Native apps. Unlike Kotlin or Java, JavaScript isn't compiled—and neither is React Native. Bundling isn't the same as compiling, but it can help improve startup performance and translate some platform-specific JavaScript into more widely supported JavaScript.
+:::note
+If you're familiar with web development, Metro is similar to bundlers such as Vite and Webpack, but is designed end-to-end for React Native. For instance, Metro uses [Babel](https://babel.dev/) to transform syntax such as JSX into executable JavaScript.
+:::
 
 <h3>Step 2: Start your application</h3>
 

docs/_getting-started-macos-ios.md

@@ -133,19 +133,19 @@ You might also want to ensure that all "shell script build phase" of your Xcode
 
 ### Step 1: Start Metro
 
-First, you will need to start Metro, the JavaScript bundler that ships with React Native. Metro "takes in an entry file and various options, and returns a single JavaScript file that includes all your code and its dependencies."—[Metro Docs](https://facebook.github.io/metro/docs/concepts)
-
-To start Metro, run `npx react-native start` inside your React Native project folder:
+[**Metro**](https://facebook.github.io/metro/) is the JavaScript build tool for React Native. To start the Metro development server, run the following from your project folder:
 
 ```shell
 npx react-native start
 ```
 
-`react-native start` starts Metro Bundler.
-
-> If you use the Yarn package manager, you can use `yarn` instead of `npx` when running React Native commands inside an existing project.
+:::info
+If you use the Yarn package manager, you can use `yarn` instead of `npx` when running React Native commands inside an existing project.
+:::
 
-> If you're familiar with web development, Metro is a lot like webpack—for React Native apps. Unlike Swift or Objective-C, JavaScript isn't compiled—and neither is React Native. Bundling isn't the same as compiling, but it can help improve startup performance and translate some platform-specific JavaScript into more widely supported JavaScript.
+:::note
+If you're familiar with web development, Metro is similar to bundlers such as Vite and Webpack, but is designed end-to-end for React Native. For instance, Metro uses [Babel](https://babel.dev/) to transform syntax such as JSX into executable JavaScript.
+:::
 
 ### Step 2: Start your application
 

docs/_getting-started-windows-android.md

@@ -156,19 +156,19 @@ Click "Next" then "Finish" to create your AVD. At this point you should be able
 
 <h3>Step 1: Start Metro</h3>
 
-First, you will need to start Metro, the JavaScript bundler that ships with React Native. Metro "takes in an entry file and various options, and returns a single JavaScript file that includes all your code and its dependencies."—[Metro Docs](https://facebook.github.io/metro/docs/concepts)
-
-To start Metro, run `npx react-native start` inside your React Native project folder:
+[**Metro**](https://facebook.github.io/metro/) is the JavaScript build tool for React Native. To start the Metro development server, run the following from your project folder:
 
 ```shell
 npx react-native start
 ```
 
-`react-native start` starts Metro Bundler.
-
-> If you use the Yarn package manager, you can use `yarn` instead of `npx` when running React Native commands inside an existing project.
+:::info
+If you use the Yarn package manager, you can use `yarn` instead of `npx` when running React Native commands inside an existing project.
+:::
 
-> If you're familiar with web development, Metro is a lot like webpack—for React Native apps. Unlike Kotlin or Java, JavaScript isn't compiled—and neither is React Native. Bundling isn't the same as compiling, but it can help improve startup performance and translate some platform-specific JavaScript into more widely supported JavaScript.
+:::note
+If you're familiar with web development, Metro is similar to bundlers such as Vite and Webpack, but is designed end-to-end for React Native. For instance, Metro uses [Babel](https://babel.dev/) to transform syntax such as JSX into executable JavaScript.
+:::
 
 <h3>Step 2: Start your application</h3>