Is there any way to display a volume's deduplication rate and savings under volume details?
You could do a UNDP for that metric and add it the volume details page.
Your screenshot looks like it's from a Windows server management console, so I would use WMI query or a PowerShell script monitor to get that information. (See Get-DedupStatus at https://docs.microsoft.com/en-us/powershell/module/deduplication/get-dedupstatus?view=winserver2012r2-ps.)
