Invoke Split View More Easily in Catalina
Split View on the Mac helps you focus on your work in one app—perhaps a word processor—while providing access to one other app, like a Web browser.
Use Your Apple Watch to Unlock Your Mac, and Apps in Catalina
If you’ve resisted requiring a password on your Mac after it wakes up or comes out of the screen saver because it’s too much work to enter repeatedly, an Apple Watch can make authentication much easier.