https://techcrunch.com/2019/05/15/steam-link-now-lets-you-beam-steam-games-to-your-ios-devices/

About a year ago, Valve announced that it was building an application called Steam Link. It’d let you play Steam games built for Mac/Windows/Linux on your iOS or Android devices through the magic of streaming, with a computer on your local network doing all the actual heavy lifting.

Then Valve submitted it to the iOS App Store and… Apple rejected it. At the time, Valve said that Apple pinned the rejection on “business conflicts”.