With iOS 15, and macOS Monterey, you can send video and audio from your iPhone to your Mac, just as you already can to an Apple TV.
Sometimes there are new features on macOS Monterey and iOS 15 that feel like Apple is slowly catching up with a wish list. From its origins as AirTunes in 2004, through its launch as AirPlay 2 in 2018 and on to now, you have not been able to stream video from an iPhone to a Mac using AirPlay.
Now you can. So if you’re by your Mac when you get a video sent over Messages, you can watch it on the big screen.
If you’re running social media accounts and watching videos on Twitter on your iPad, you can send that to your iMac too.
You do it the same way you AirPlay from iPhone to Apple TV. Just as with that, there are two methods, starting with mirroring your screen.
Read more at AppleInsider.com