Here’s how to connect your Steam Deck to a TV via HDMI: Connect a USB-C hub or USB-C to HDMI adapter to your Steam Deck.

You can connect to monitors via a USB-C (via adapters to non-USB-C monitors) or better a dedicated video port, such as HDMI or DisplayPort ... for the many older display standards out there ...

Another tidbit from Apple’s support document: You can connect your iPhone to an HDMI display or TV with a USB-C to HDMI adapter or cable. Adapters and cables that support HDMI 2.0 can output video ...

If not, you’ll require either a USB-C-to-HDMI or USB-C-to-DisplayPort adapter (not included) depending on the display’s ports. The Plugable Thunderbolt Docking Station with DisplayLink (TBT ...