You can simply and quickly start using 3 monitors (4 if you count your laptop’s monitor) by using this Lenovo USB-C Dock, that can also charge your laptop at the same time
In this video “Docktor” Roy shows you how it can be done
https://impresscomputers.com/product/lenovo-thinkpad-universal-usb-c-dock-hdmi-dp-90w-40ay0095us/
