I believe Proton does not/will not be integrated into Steam on Mac because it would compete with CrossOver, the paid product from CodeWeavers that essentially funds Wine development.

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TkTech 4 days ago | parent | next [-]

I don't really believe this to be an issue - Valve directly contracts CodeWeavers, they developed Proton together, and they've been pretty clear from recent hiring bursts that it was specifically to work on Proton. I have to imagine the income from Valve is exponentially higher than the relative niche of CrossOver. They're basically a subdivision of Valve now.

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hamdingers 4 days ago | parent [-]

I'm interested in alternate explanations if you have them, to be clear this is only my theory.

While Valve might make up a big part of CodeWeavers book of business now, that was not true when the original contract was signed.

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int_19h 4 days ago | parent [-]

The alternate explanation is that it's rather pointless to integrate it because all new Macs are ARM, and there are basically zero Windows games compiled for ARM.

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hamdingers 4 days ago | parent [-]

Not likely considering Valve are working on an ARM version of proton in the open, have published test results for x86-64 windows games playing on proton-arm64ec-4, and there are credible leaks that the Steam Frame uses an ARM cpu.

If anything Valve is moving towards ARM and taking the library along with it.

	▲	int_19h 3 days ago \| parent [-]
		Then it will probably happen after they get it polished on Windows.

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asmor 4 days ago | parent | prev [-]

Crossover isn't aimed at the gaming crowd, but productivity software. Their builds favor stability over new and shiny compatibility/feature support. I just had a license because I like supporting CodeWeavers.

They also make a Linux build of CrossOver.

	▲	hamdingers 4 days ago \| parent [-]
		They advertise gaming as a use case for CrossOver (there used to be a separate CrossOver Games product, even, which I was a customer of), and it would not surprise me if the linux build of CrossOver sells so little they wouldn't care.