And as far as iMessage, while Apple's messaging service won't work on an Android phone, you can even move your message history and threads to your new phone. You can even use it to automatically download any Android versions of free iOS apps you had on your old Apple phone. With the adapter, photos, videos, files, music and wallpaper transfer over.
You can also use an USB-C to lighting cable for newer phones like the iPhone 11 and 12. It's like hiring professional movers to move your stuff, unpack it and decorate your new house just like your old one! The adapter has a USB-A connector on one end and a USB-C connector on the other that allows you to connect your new phone to your old iPhone. The secret to an easy-peasy transfer process lies with the tiny plastic adapter that Google and Samsung (sometimes) include in the box.