amazing news. Surprised this wasn't reported sooner! 10 years back I used to use a workaround solution (https://github.com/360Controller/360Controller#xbox-controller-driver-for-macos) to get my wired Xbox 360 controller working on my 2011 27" iMac and used subsequent updates but it became less reliable with each macOS update and eventually stopped working altogether. Happy to see it officially supported. Just tested it with Steam 