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SteamOS is a Linux distro ; chances are, yes, you can. It is however probable that the kernel will need some time to be optimized for that setup and would miss a few drivers (the touch ID one mainly). There will probably be some patches coming in the next few months, and we'll see. I don't think Asus will be forthcoming with patches...Is it possible to install the steamdeck software on this instead of windows?
It seems you misunderstood me : Windows overhead is 2-4% when your CPU runs at 3-4 GHz; when it runs slower (like, say, 800MHz because it's out of juice) then you're in the 15% range (because telemetry needs its CPU cycles, and the antivirus, and the game bar, and the search index, and process isolation, and secure boot, and... Yeah, whatever it is that has Windows using 2.5 GB of RAM after a clean install, and Windows 11 running 10% slower than Windows 10 on a default install) at the very least - all stuff that Linux doesn't have. Add 8 cores running doing that stuff, and you have a winner - I have yet to see core parking actually working dynamically in Windows.15% is bunk, unless you’re opening a bunch of browser windows, with a video in one of them, and using a dual-core CPU maybe. On something like the Ally, with an 8-core CPU, Windows’ background tasks probably amount to 5% of one CPU core. Even on a Steam Deck, it wouldn’t be 15%.
Places (including Tom’s) have run benchmarks under Windows and SteamOS with a Steam Deck. Performance is usually very close or favors Windows. There’s a reason for that. Yes, binary translation can hurt SteamOS performance. But the biggest delta I’ve seen in favor of SteamOS was around 10% (for a game with a native Linux port). And most of the time it’s more like 2~4% at most. 15% is a massive outlier. That’s in line with the bigger overhead of Windows: 2-4%.