Choosing the right blend mode became significantly faster in this version. Instead of clicking every single option in the dropdown, you can now simply your mouse over modes like "Overlay" or "Multiply" to see a live preview of the effect on your canvas. What's New in Adobe Photoshop CC 2019
No “zzz” button, but your PC can sleep while Photoshop saves in the background.
Here’s a complete review based on what that phrase likely refers to (based on common piracy/crack patterns):
This "exclusive" feel came from the ability to hover over different blend modes and see the results instantly on the canvas without clicking. The Mystery of the "zzz xzxzxzxz" Prefix
He clicked the Brush tool. Instead of a circle cursor, his mouse pointer turned into a small, swirling vortex. He drew a stroke across the blank canvas. It didn't leave a trail of color. It left a trail of sleep .