Can you charge Surface Laptop 4 via USB-C? - SurfaceTip
How to Charge Laptop Through USB Port (Yes, Really!)
Can I Charge My Laptop with USB? Let's find out the Possibilities - Sysprobs
Understanding How to Charge Laptop with HDMI - Anker US
Charge Your Laptop on the Go with These USB-C Car Chargers - Dignited
How to Charge a Laptop Without a Charger: 3 Methods < Tech Takes - HP.com India
Can my HP laptop charge on USB? - Quora
Anker PowerLine USB-C to DC cables charge older laptops with USB-C
Found a nice solution to charge my laptop with a USB-C charger even though its USB-C doesn't support charging. Minus 0.75 kg from the luggage weight, score! (more in the comments) :
5 Ways to Charge Your Laptop Without a Charger
How To Charge Your Laptop With USB-C
3 Different Ways To Charge a Laptop Without a Charger | HP® Tech Takes
Charge almost any Laptop with Plugable's USB-C PD 60 Watt Charger! - YouTube