To type the Apple logo emoji on a Mac, hold down the Shift and Option keys simultaneously and hit the letter K key.
On iPhone, you can set up a keyboard combination to enter the Apple logo emoji by going to Settings -> General -> Keyboard -> Text Replacement.
On iPad, you can use the same key combination as on a Mac if you have an external keyboard, or follow the same process as on iPhone if you are using the on-screen keyboard.
Note that the Apple logo emoji might not show up correctly on Windows, Android, or other platforms.