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 ...
The iPhone 15 can also connect to CarPlay wired head units, microphones, battery packs, USB to Ethernet adapters ... an external display via USB-C's support for DisplayPort and HDMI.