I can verify windows 10 works perfectly fine with steam.
Backward compatibility on very old games can be a problem but we're talking about DX5 or 6 games, something about that version is no longer supported. I still don't get the point, are you saying MS will do something to prevent steam from running and valve will have no way of patching/complying?
Conjecture on my part, but the impression I get from this piece is that UWP is UAC on Steroids.
Access to to the Win System is getting more and more difficult for third party applications. From this, I would think the System allowing access to external (Network) Services is going to be even more challenging/restricted.
For new software developed specifically for Win 10 this may not be too bad, but for legacy or not specific (exclusive) Win 10 programs I could see some possible authentication issues.
This is where I think things could break more than anything else.
I don't know enough about UWP though to nail it down. There's not really enough detail in the first Article.
From the other link, here's the heart of the issue :
The specific problem here is that Microsofts shiny new Universal Windows Platform is locked down, and by default its impossible to download UWP apps from the websites of publishers and developers, to install them, update them, and conduct commerce in them outside of the Windows Store.
Its true that if you dig far enough into Microsofts settings-burying UI, you can find a way to install these apps by enabling side-loading. But in turning this off by default, Microsoft is unfairly disadvantaging the competition. Bigger-picture, this is a feature Microsoft can revoke at any time using Windows 10s forced-update process.
From just this part of it, I can see all kinds of Headaches for users.
Just look at some of the issues (some) users have getting things to install and run now (Steam Forums).
Folks here reading this are not your average Joe Sixpack/Suzy Homemaker, or whatnot, for the most part we're pretty good at getting things working, but I think even we have a few challenges once in awhile.
The average user could have real problems with this.
In regards to future Patching causing issues, yeah, I could see MS integrating this into the OS under the guise of increased Security.
Antitrust issue ?
I would certainly think so, but that hasn't stopped them in the past (IE), and once this gets into to the System . . .
How long did it take the IE issue to get resolved?
It drug on for years.
We get torqued when we can't access our games for a few hours, how do you think this is going to play out?
I think this may be what Sweeney referring to as Steam breaking, and that Steam is mentioned as it's the largest distribution platform.
I don't know, the more I dig, the more I think Sweeney may actually be onto something.
.