macOS 11 beta 2 free space issues

After doing a clean install of macOS 11 beta 2, I'm seeing that there's now less than 50GB remaining.

Machine: 2018 15" MacBook Pro

Looking at System Information, it is saying that there's 365GB in "Other Volumes" though the install was done as a clean install removing the existing volumes from the flash storage.
macOS 11 beta 2 free space issues
 
 
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