Op-ed: Valve has made a dent in Windows’ gaming share, but can it keep going? Valve's Steam Deck OLED. Credit: Valve Valve's Steam Deck OLED. Credit: Valve Valve and its SteamOS operating system have already done what a bunch of companies (including Apple) have been trying to do for decades: make a dent in Windows’ dominance in PC gaming. I mean, sure, according to Valve’s own statistics, Microsoft remains dominant. Over 92 percent of PCs in the Steam Hardware Survey run some version of Windows. But five years ago, this number was just over 96 percent . Ten years ago, it was just under 96 percent . Fifteen years ago? It was 96 percent . Go back any further than that and Steam only runs on Windows in the first place, itself a testament to Microsoft’s ubiquity. Between April 2021 and now, Linux’s share has climbed from under 1 percent to over 5 percent.…