Steam Link will be useful on Macs, particularly as it’s rare to see big AAA games debut on macOS. While the Steam macOS app has offered streaming already, MacRumors points out that this lightweight Steam Link app is just 30MB in size from the Mac App Store compared to the full Steam app, which requires 1GB of storage space. The app allows Steam users to stream games from a PC to devices with the Steam Link app installed.
Valve is launching a dedicated Steam Link app for macOS this week.