this post was submitted on 12 Nov 2025
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Linux Gaming
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Steam deck highlights that Windows -> SteamOS translation is good enough.
I've use my Index on Bazzite successfully with no issues, so I'm confident in SteamOS VR capabilities.
ARM-based is the only wildcard, but if fex works, then that's not an issue either.
Then just onboard compute performance is the only factor. But like you said, even if this winds up only being a "stream everything, its a wireless index," then I'm already excited.
It seems that Valve has been experimenting with adding ARM support to proton for a while now. But I couldn’t find much information on this topic.
https://github.com/FEX-Emu/FEX
My understanding is that FEX + Proton is the plan and just double up on the translations as appropriate.
Valve has supposedly just been heavily investing in fex.