Need to know how many subfolders and files are nested inside any given folder, server-side

Good day
we are evaluating migrating two companies from Sharepoint to Dropbox. 

We need a way to know how many subfolders and files are contained, server-side, under any given top-level folder.

This is an extremely simple information, and it is of fundamental importance in order to check complete sync after a large file upload, download or move.

Of course such information must be available rapidly, without browsing each single subfolders (there are dozens thousands) and without limiting to check desktop-side (which is entirely useless, given that we want to survey the status of data moves SERVER-SIDE).

So, for instance, suppose we have:

- top-level folder "A"
- inside "A": 3 files and the 2 subfolders "B" and "C"
- inside "B": 7 files and 1 subfolder "D"
- inside "C": 5 files and 1 subfolder "E"
- inside "D": 12 files and no subfolder
- inside "E": 8 files and 1 subfolder "F"
- inside "F": no files and no subfolders....

... I need a way to know that inside "A" there are:

- 35 files
- 5 subfolders

In Sharepoint it is ridiculously complex to achieve such a basic information, but at least I can use PowerShell and some additional module.

$FilesCount = (Get-PnPFolderItem -FolderSiteRelativeUrl "Top-Level-Folder-Name" -Recursive -ItemType File).Count

$SubFoldersCount = (Get-PnPFolderItem -FolderSiteRelativeUrl "Top-Level-Folder-Name" -Recursive -ItemType Folder).Count

Write-Host "Number of files: $FilesCount" && "Number of subfolders: $SubFoldersCount"

HOW exactly can I have such information with Dropbox?

Many thanks
Enrico Penco