The Studio Display will be supported too, obviously. 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 ...

Chromecast or linking directly to your TV's YouTube app using a code. And if you want to connect your iPhone to your television using an HDMI cable, you can use either a USB-C to HDMI adapter if ...