Figure out what new ARP entries there are.

ArpMe.ps1

function Get-ARPTable {
    $registry_paths = @('HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*','HKLM:\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*', 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*', 'HKCU:\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*')
    return Get-ItemProperty $registry_paths -ErrorAction SilentlyContinue |
         Select-Object DisplayName, DisplayVersion, Publisher, @{N='ProductCode'; E={$_.PSChildName}}|
         Where-Object {$null -ne $_.DisplayName } |
         Where-Object {$null -ne $_.DisplayVersion } |
         Where-Object {$null -ne $_.Publisher }
}


# See how the ARP table changes before and after a ScriptBlock.
function Get-ARPTableDifference {
    Param (
        [Parameter(Mandatory=$true)]
        [scriptblock]
        $ScriptToRun
    )
    $originalArp = Get-ARPTable
    $ScriptToRun | Invoke-Expression 
    $currentArp = Get-ARPTable
    return (Compare-Object $currentArp $originalArp).InputObject
}

# Example usage:
# Get-ARPTableDifference { winget install Microsoft.Teams; }
# Returns:
# DisplayName     DisplayVersion Publisher             ProductCode
# -----------     -------------- ---------             -----------
# Microsoft Teams 1.4.00.26376   Microsoft Corporation Teams