How to install macOS Big Sur beta on a separate APFS volume [Video]

When testing out beta versions of macOS, I rarely install them on my main Mac volume containing the current version of macOS. Instead, I prefer to simply create a second volume dedicated to the beta. This option has been available since the release of macOS High Sierra, and makes it extremely easy to install multiple copies of macOS without having to deal with disk partitioning, sizing, etc.
By simply creating another APFS volume on the existing APFS container, you’ll have a dedicated spo