

An upgrade may result in a slow Mac if it's incompatible with your hardware.If you received the error - (null) can't be installed on "Macintosh HD" because macOS version 10.15 or later is required - when trying to install software like Microsoft Word in App Store, it's time to upgrade your operating system. It's worth updating to macOS Monterey when you want to access its new features mentioned in Apple WWDC 2021 like the Shortcuts app or when your current macOS no longer support the software you want to install.

Reasonably, many Mac users whose Mac models are supported by macOS 12 have taken the leap with the upgrading.
