I dared to connect the built-in HDMI cable to my LG CX TV. Although they transmit a 4K signal, there is significant artifacting (white dots that look like stars) in areas of the screen that should otherwise be either black or showing content. Removing the Cable Matters adapter and connecting the TV directly to the video source fixed the problem immediately. This will likely work for 1080p or other less intense graphics, but stay away if you're trying to use 4K HDR.
Tobenone USB C to USB Adapter with π» 2 Ports for MacBook, Dell XPS & More Type-C Devices
13 Review
4K / 30Hz USB-C to HDMI Adapter - 3-in-1 Type-C Converter Cable for MacBook Pro, MacBook, Mac Pro, iMac, Chromebook, and USB 3.0 Type-C Devices (2017/2018)
13 Review
π΄ 2 Pack JSAUX HDMI Coupler Female to Female for 4K HDR Extension - Aluminum Alloy Adapter for HDTV, Roku Stick, Computer, Monitor, Laptop, Projector, DVD Player, PS 4/3 (Red)
12 Review
Portable battery with wireless charging support COMMO Magnetic Power Bank, 4 600 mAh, graphite
23 Review