In the case of Android Q, users are seeing a two-tone screen with a background showing diagonal lines and a stylized Android logo at the front with number 10, which is the version number of Android Q. It has been mentioned that double-tapping the number animates them to form the letter Q.
What does the Android 10 Easter egg do?
Android 10 easter egg
Click on the Android version to open that page, then on "Android 10" repeatedly until a big Android 10 logo page opens. These elements can all be dragged around the page, but if you tap on them they rotate, press and hold and they start to spin.
How do you access the Android Q Easter egg?
Navigate to Settings > About Phone, and then tap multiple times on the Android Version box. Starting in Android Pie, a box pops up and you must tap on the Android Version box a bunch of times to see the Easter egg. From there, tap and long-press the P logo multiple times until the drawing app appears.