Since this is a workaround for Clear-Host only, I believe we need to explicitly check ForegroundColor and backgroundColor too, as set by Clear-Host.

The local Clear-Host on non-Windows doesn't check the colors. I think it's fine to ignore the colors here.

Thanks, I wasn't sure if the actual values set remotely would line up with the ones seen locally which is why I ignored it. I personally think the intent is clear in that setting the position to -1 with the char ' ' is good enough but thank you for confirming.

$RawUI.SetBufferContents(
    @{Top = -1; Bottom = -1; Right = -1; Left = -1},
    @{Character = ' '; ForegroundColor = $rawui.ForegroundColor; BackgroundColor = $rawui.BackgroundColor})

To catch only such a method call, you need to check the colors too. Otherwise, someone may try to paint over the screen in a different color, and get the screen cleaned, which would mislead users because other parameter values would cause the exception.