Just how important is an operating system to the overall experience of a device? Is it about how well your desired software runs on it? Is it about how cohesive and responsive the user experience feels, or is it about how effectively the OS leverages the hardware it ships alongside it? The answer is almost always a yes to all of the above, and there is no doubt that it's precisely this set of questions that Windows handheld owners have been asking themselves over the past few years.

A growing number of them, remarkably enough, are arriving at the same conclusion. SteamOS, built on Linux, delivers a better experience on every count. The performance is measurably stronger, the interface is hand-crafted for the form-factor, and there's little reason to stick with a poorly-optimized OS. For a platform that has spent decades behind Windows on every other platform, this is arguably Linux's first decisive victory, but there may be more to come.

Why are Windows handheld owners migrating to SteamOS?

Valve's handheld OS is a masterclass in performance optimization

If you spend any amount of time analyzing the sentiment of users on Reddit or Steam community forums, you'll soon come to notice that the chief complaints that come from users running Windows on laptops also tend to surface in discussions surrounding handhelds. Windows has become increasingly defined by its background process overhead, bloatware, and inessential features that hit thermally and resource-constrained hardware twice as hard as they hit full-sized rigs.

All of these resource-hogging aspects (that have lately defined the Windows experience on all platforms) translate to tangibly poor performance and have, as a result, created a moment of mass exodus from Microsoft's ecosystem amongst handheld users. The benchmark data online also beautifully substantiates this wave of migration. Based on our own testing, Linux-based SteamOS outperformed Windows on the Lenovo Legion Go between 11–45% across titles, and, shockingly enough, held onto more of its performance when running on battery rather than AC power.

What's equally humorous is that this migration isn't purely limited to end users. When Lenovo shipped the Legion Go S, it became the first official non-Valve handheld to enter the market, which was the variant many reviewers recommended over the Windows counterpart, for all the reasons that have become common knowledge now.

But it's not just about the benchmark numbers

Windows is hopelessly outclassed in the handheld arena

Whereas the performance gap is what most users fixate on, the usability gap between Linux on handhelds and equivalent Windows systems is arguably much wider. That is, wide enough to consider an OS switch. When you boot a device running SteamOS, you'll feel that you've booted into a system that's benevolent to a controller-native interface, with controls that are centered around the thumb sticks and buttons, and doesn't feel "foreign" or obstructive to use in any sense. Windows 11, on the other hand, asks you to navigate a desktop operating system using analog sticks and a touchscreen that seems like it was never supposed to be the primary input method.

Microsoft did attempt to remedy it, well, at least partially. Its answer was the Xbox Full Screen Experience, which was essentially a console-style launcher that sat on Windows and switched off services that never belonged on the handheld in the first place. The experience compared on the two platforms, even on the same hardware, will convey that, while SteamOS was hand-crafted to cater to the needs of the small form-factor and ergonomics, Windows 11 was just scaled down and shoehorned into the same device without a second thought.

Years of feedback neglect have finally caught up with Microsoft

Turns out, you can't just slap a desktop OS on a handheld and expect it to work well

With the fall 2025 rollout of the Xbox Full Screen Experience (and later, the Xbox Mode), Microsoft's response has been a tacit acknowledgment of just how badly it allowed the handheld optimization to deteriorate. The feature, which launched on the ROG Xbox Ally, was designed specifically to minimize Windows 11's background tasks and telemetry in order to improve graphical performance and battery efficiency, which is a problem the community had been raising for years.

The performance data has been here all this time, and yet, it took Microsoft an inexcusably long time to act on what the community had proven. Eight months ago, when Windows Central benchmarked Shadow of the Tomb Raider on a first-gen ROG Ally, the Full Screen Experience delivered 38 FPS compared to 29 FPS in standard desktop mode.

Funnily enough, the reviewer also noted that the performance uplift was virtually identical to when desktop startup applications and background processes were disabled manually. This means that a potential 31% performance uplift was possible just by disabling apps and services which were not conducive to the handheld experience, and yet it took Microsoft two years to realize it. The fact that this was packaged as a feature rather than shipped as a default speaks volumes about where handheld users sat on Microsoft's list of priorities.

The year of gaming on Linux is finally here, but on a form-factor no one expected

The "year of Linux" has been a sad punchline for about two decades, but it looks like it has arrived already, just not on the desktop where everyone was expecting it. The market has ruled, and SteamOS has comprehensively outclassed Windows in the handheld space (where it was needed the most). Unless Microsoft does something far more drastic than a launcher layer slapped on to the OS in the name of optimization, the handheld space is going to belong to Valve for the foreseeable feature. It remains to be seen how Microsoft responds, but I just hope it's not with more AI or Copilot for handhelds.