From the The Keyword (Google’s Blog):
You can already use Lens to quickly copy and paste text from paper notes and documents to your phone to save time. Now, when you select text with Lens, you can tap “copy to computer” to quickly paste it on another signed-in device with Chrome. This is great for quickly copying handwritten notes (if you write neatly!) and pasting it on your laptop without having to retype them all.
Copying text to your computer requires the latest version of Chrome, and for both devices to be signed into the same Google account.