If you want to use dpps with powershell one way is to use an alias.
i installed it with pip install docker-pretty-ps and added an alias to my profile.
function DPrettyPS {
$expression = "python C:\ProgramData\scoop\apps\python\current\Scripts\docker-pretty-ps "+$args[0]
Invoke-Expression $expression
}
Set-Alias dpps DPrettyPS -Option AllScope
now you can use it with the alias dpps and all available parameter like dpps -s

Hope it helps someone.