Portable gaming handhelds like the Asus ROG Ally and the Lenovo Legion Go run on Windows, true. But if Microsoft itself were to make such a console, it appears that Xbox, not Windows, may have the upper hand. In an interview with Polygon, Microsoft Xbox and gaming chief Phil Spencer described how he wants portable gaming consoles like the Lenovo Legion Go or the ROG Ally to feel “more like an Xbox,” he said. But the killer quote is one that blames Windows itself: “The things that usually frustrate me are more Windows-based than device-based,” he said. To be fair, the Xbox brand at Microsoft no…