Windows 10 is an anti-consumer abomination, and UWP is just one of its many failures. (Though it hasn’t technically failed yet, one only needs to look at how Games for Windows Live worked out, not to mention the catastrophic initial Xbox One announcement, for a glimpse of the direction UWP is headed in.)
To be honest I am a bit perplexed at the number of people in this thread (and the other one linked to) who seem to genuinely think that UWP is a good idea. Assuming these are actual game developers and not shills paid by Microsoft, this means there will be plenty of developers to go on my “boycott now and forever” list. I’ll stick with GOG or Steam, thanks.
Who will save PC gaming now? Valve? Linux? I don’t know, but I sure as hell don’t have faith in Microsoft to do the right thing anymore.