How many files have been deleted?

Is there a way to find out how many files have been deleted by a retention policy over a certain time frame? (across the entire tenant)

As well the # of files, the total size or space freed up by these deletions?

I've tried researching PowerShell cmdlets and other areas to find this information out but have come up empty.

We'd like some initial information on how the implementation of Microsoft Purview Records Management is progressing.