If it errors out by saying you will need additional drivers in your mac, following steps should fix that. Try clicking the computer name in your Samsung TV’s steam link app. If your computer and your TV are in the same network your Mac username should show up in Steam Link app’s menu in your TV.The installation may require couple of restarts, please do so. Also, make sure if the app installation prompts for Security and Privacy for any options during installation, make sure to press Allow at the bottom of Mac’s Security & Privacy settings. If steam tries to install some drives, let it do so. Even if you have to enable it during this step, make sure to remove it for next step. Make sure you don’t set any pin code for steam link. In the Advanced Host Options you can enable Enable hardware encoding (all three options) and Dynamically adjust capture resolution. Open steam and go to Preferences -> In-Home Streaming and check “Enable streaming”.Install Steam Link app in your Samsung TV (search the app in the application store).You will need to adjust the setup if you have different devices and OS. In this guide, I use Mac OS, PS4 controller, HDMI cable and HDMI to USB-C connector. In this guide I will try to provide necessary steps and some debugging tips to setup Steam Link app and Steam.

Samsung steam link controller