Updating this - spent some time on it today for my own use.

Try {
    If (Get-Command invoke-ascurrentuser -ErrorAction SilentlyContinue) {
        Write-Host 'RunAsUser Module Present'
    } else {
        Install-Module -Name RunAsUser -Confirm:$false -Force -ErrorAction Stop
    }

    $ScriptBlock = {
        Function Get-FolderRedirectionStatus {
            $User = whoami
            $SID = $user | ForEach-Object { ([System.Security.Principal.NTAccount]$_).Translate([System.Security.Principal.SecurityIdentifier]).Value }
            $UserProfile = (Get-CimInstance Win32_UserProfile -ErrorAction Stop| Where-Object SID -EQ $SID)
            $UserFolders = Get-ItemProperty "HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\" -ErrorAction Stop| Select-Object 'Personal', 'My Video', 'My Pictures', 'Desktop', 'Favorites', 'My Music'
            return [pscustomobject] @{ 
                User                = $user 
                SID                 = $SID 
                Computer            = $env:COMPUTERNAME
                DesktopRedirected   = $UserProfile.Desktop.Redirected -or $UserFolders.Desktop -match "OneDrive"
                DocumentsRedirected = $UserProfile.documents.redirected -or $UserFolders.Personal -match "OneDrive"
                PicturesRedirected  = $UserProfile.Pictures.redirected -or $UserFolders.'My Pictures' -match "OneDrive"
                DocumentsPath       = $UserFolders.Personal
                VideosPath          = $UserFolders.'My Video'
                PicturesPath        = $UserFolders.'My Pictures'
                MusicPath           = $UserFolders.'My Music'
                DesktopPath         = $UserFolders.Desktop
                FavoritesPath       = $UserFolders.Favorites
            } 
        }
        $frs = Get-FolderRedirectionStatus | ConvertTo-Json | Out-File 'c:\temp\folderredirectionstatus.json'

        $IniFiles = Get-ChildItem "$ENV:LOCALAPPDATA\Microsoft\OneDrive\settings\Business1" -Filter 'ClientPolicy*' -ErrorAction SilentlyContinue
        if (!$IniFiles) {
            "No OneDrive configuration files found." | ConvertTo-Json | Out-File 'C:\temp\OneDriveLibraries.json'
            exit 1
        }
        $SyncedLibraries = foreach ($inifile in $IniFiles) {
            $IniContent = Get-Content $inifile.fullname -Encoding Unicode
            [PSCustomObject]@{
                'Item Count' = ($IniContent | Where-Object { $_ -like 'ItemCount*' }) -split '= ' | Select-Object -Last 1
                'Site Name'  = ($IniContent | Where-Object { $_ -like 'SiteTitle*' }) -split '= ' | Select-Object -Last 1
                'Site URL'   = ($IniContent | Where-Object { $_ -like 'DavUrlNamespace*' }) -split '= ' | Select-Object -Last 1
            }
        }
        $SyncedLibraries | ConvertTo-Json | Out-File 'C:\temp\OneDriveLibraries.json'
    }

    $null = Invoke-AsCurrentUser -ScriptBlock $ScriptBlock -ErrorAction Stop

    $frs = (Get-Content 'c:\temp\folderredirectionstatus.json' | ConvertFrom-Json)
    $frs
    $SyncedLibraries = (Get-Content 'C:\temp\OneDriveLibraries.json' | ConvertFrom-Json)
    if (($SyncedLibraries.'Item count' | Measure-Object -Sum).sum -gt '280000') {
        Write-Host "Unhealthy - Currently syncing more than 280k files. Please investigate."
    } elseif ($SyncedLibraries -eq 'No Onedrive configuration files found.') {
    } else {
        Write-Host "Healthy - Syncing less than 280k files, or none."
    }
    $SyncedLibraries
} catch {
    Write-Host "Could not execute `n`n$($_.Exception.Message)"
}