https://www.techradar.com/news/valves-steam-link-app-is-now-on-ios-one-year-after-apple-rejected-it

Valve's Steam Link app has finally landed on the App Store, meaning iOS users can finally beam their Valve-purchased PC games to play on their iPhone, iPad, or Apple TV.

Steam is still the leading marketplace for video games on PC, despite some fiery competition from the Epic Games Store – and the Steam Link app allows for a more flexible gaming experience that doesn't chain you to your PC monitor.