The latest stable SteamOS update, version 3.7.8, adds official support for Legion Go S, making it the first certified non-Steam Deck SteamOS device.Improved support is also provided for other AMD-powered handhelds like the ROG Ally and original Legion Go.The installation of SteamOS on the Legion Go S was smooth after some initial setup requirements.The entire installation process from downloading to logging into Wi-Fi and Steam took less than 30 minutes.The OS gave a guided tour of Legion Go S buttons and their functions within SteamOS.Adjusting the TDP settings on SteamOS can improve gaming performance on the Legion Go S.Games like Cyberpunk saw a 23% FPS increase and Horizon Zero Dawn saw a 19% FPS increase with SteamOS.Optimizing TDP settings for battery life and fan noise can be beneficial during gameplay.Despite fan noise issues, the overall experience of running SteamOS on the Legion Go S is positive.The simplified, lightweight OS and better performance make the Legion Go S feel suited for SteamOS.