PSVersion 7.4.6
FIND: if (@($procs | ? {$_.ProcessId -ne 4242 -and $_.Path -and $_.Path.StartsWith('C:\Users\me\AppData\Local\Programs\T3 Code', 'CurrentCultureIgnoreCase')}).Count -gt 0) { exit 0 } else { exit 1 }
KILL: $procs | ? {$_.ProcessId -ne 4242 -and $_.Path -and $_.Path.StartsWith('C:\Users\me\AppData\Local\Programs\T3 Code', 'CurrentCultureIgnoreCase')} | % { Write-Output $_.ProcessId  }
--- zero matches
  count=0
  FIND exit=1
  KILL would stop PIDs: []
--- one match = own pid (in-place uninstaller)
  count=0
  FIND exit=1
  KILL would stop PIDs: []
--- one other match (leftover app)
  count=1
  FIND exit=0
  KILL would stop PIDs: [5001]
--- two other matches
  count=2
  FIND exit=0
  KILL would stop PIDs: [5001,5002]