The redesigned 2021 iMac includes an “exclusive” new screen saver reminiscent of the iconic 1984 Macintosh’s “Hello” imagery. If you have a Mac or Macbook running macOS Big Sur 11.3 or later, you can install the Hello screen saver on your computer. Here’s how.
Start by opening Finder on your Mac. You can find a shortcut to Apple’s built-in file explorer in the dock.