My bad. Yes, I meant portable monitor. I meant that I have one of those portable 17" monitors that you just plug into the USB-C port and it powers the monitor. So I really just carry the laptop, the monitor and the USB-C cable.

The Lenovo laptop in question has two monitors (where the keyboard is normally, is a screen instead), so it's less of a hassle to have dual monitors. Though, it's debatable if having to carry around a separate keyboard/mouse is easier.