[CmdletBinding()]param(
    [string[]]$Instance, [string[]]$Application, [string[]]$Runtime
)

$local:cols = [ordered]@{
    'instance'= 'Instance'
    'pid'= 'PID'
    'application'= 'Application'
    'runtime' = 'Runtime'
}

$local:paks = @(
    $($cols.Values -join "`t")) + $(
    flatpak ps "--columns=$($cols.Keys -join ',')"
    ) -join "`n" |
    ConvertFrom-Csv -Delimiter "`t"  |
    Where-Object {
        $local:p = $_
        (-not $Instance -or $( $_ -in $Instance )
        ) -and (-not $Application -or $(
            $Application | Where-Object { $($p.Application) -match $_ }
        )) -and (-not $Runtime -or $(
            $Runtime | Where-Object { $($p.Runtime) -match $_ }
        ))
    }
    
$paks