The Clear-RecycleBin cmdlet returns in PowerShell v7 preview 6 on Windows
PS> Get-Command Clear-RecycleBin -Syntax
Clear-RecycleBin [[-DriveLetter] <string[]>] [-Force] [-WhatIf] [-Confirm] [<CommonParameters>]
To use
PS> Clear-RecycleBin
Will ask for confirmation you want to perform the action
PS> Clear-RecycleBin -Force
or
PS> Clear-RecycleBin -Confirm:$false
Will bypass the need for confirmation
under: PowerShell 7