Uninstall the classic Teams client using a script DetectionMethod phase2 updater included

DetectionMethod phase2 updater included.ps1

$softwareInstalled = Get-CimInstance -ClassName Win32_Product
$isTeamsClassicInstalled = Test-Path "$($ENV:SystemDrive)\Users\*\AppData\Local\Microsoft\Teams\current\Teams.exe" -ErrorAction SilentlyContinue
$TeamsIcon_oldDesktop = Test-Path "$($ENV:SystemDrive)\Users\*\Desktop\Microsoft Teams classic.lnk" -ErrorAction SilentlyContinue

switch ($true) {
    ($softwareInstalled.Name -match 'Microsoft Teams Classic') { break }
    ($softwareInstalled.Name -match 'Teams Machine-Wide Installer') { break }
    ($isTeamsClassicInstalled) { break }
    ($TeamsIcon_oldDesktop)  { break }
    Default { Write-Output "No old Teams version found on this device. No actions will be performed." }
}