How to Install the macOS Big Sur Public Beta

Apple in August released the macOS Big Sur beta for its public beta testing group, allowing them to test out the new software for Macs ahead of its release this fall.
The macOS Big Sur Public Beta is available to anyone with a compatible Mac and it does not require a developer account. This guide walks you through the steps on installing the beta software. Note that you will need about 20GB of free space on your hard drive before attempting an installation.
Before you jump in and download the up