A PowerShell 7 function mimicking Out-GridView basics on Windows.

Show-GridView.ps1

function Show-GridView {
    param (
        [Parameter(Mandatory, ValueFromPipeline)] $InputObject
    )
    begin {
        Add-Type -AssemblyName System.Windows.Forms
        $data = New-Object 'System.Collections.Generic.List[Object]'
    }
    process {
        $data.Add([PSCustomObject]$InputObject)
    }
    end {
        $form = New-Object System.Windows.Forms.Form -Property @{Width = 600; Height = 450 }
        $grid = New-Object System.Windows.Forms.DataGridView -Property @{
            Location      = [System.Drawing.Point]::new(10, 10)
            Size          = [System.Drawing.Size]::new(560, 350)
            SelectionMode = 'FullRowSelect'
            MultiSelect   = $true
        }
        
        $okButton = New-Object System.Windows.Forms.Button -Property @{
            Text     = 'OK'
            Location = [System.Drawing.Point]::new(480, 370)
            Width    = 80
        }
        $okButton.Add_Click({
                $selected = $grid.SelectedRows | ForEach-Object { $_.DataBoundItem }
                $form.Tag = $selected
                $form.DialogResult = 'OK'
                $form.Close()
            })
        
        $cancelButton = New-Object System.Windows.Forms.Button -Property @{
            Text     = 'Cancel'
            Location = [System.Drawing.Point]::new(390, 370)
            Width    = 80
        }
        $cancelButton.Add_Click({ $form.Close() })
        
        $grid.DataSource = $data
        $form.Controls.AddRange(@($grid, $okButton, $cancelButton))
        
        if ($form.ShowDialog() -eq 'OK') {
            return $form.Tag
        }
    }
}

Example usage:

$selected = Get-Process | Select-Object Name, ID, CPU | Show-GridView
if ($selected) { $selected | Format-Table }