Steam OS 3.5 is around the corner promising among other tweaks – better performance in games, HDR and VRR support for external monitors and more vibrant color settings for the SteamDecks internal screen. I am going to put this to the test in this hands-on video including some game tests (Cyberpunk 2077, Control, Baldurs Gate 3) – comparing the performance between Steam OS 3.4.10 and Steam OS 3.5.